U.S. PATENT AND TRADEMARK OFFICE
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U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
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Class 351
OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING
Class Definition:
This class corresponds generally in subject matter to
optometry, and includes eye examining and vision testing
instruments. These instruments must include some optical
structure or they must operate in conjunction with the
optical or vision path of the eye. Included also are these
instruments combined with eye exercising and/or training
devices. Included also are certain accessories such as test
charts and/or targets which may involve projection,
illuminators and supports which are peculiar to these
instruments. Included also are methods of operating or using
these instruments and not generally classifiable.
Included also are spectacles and eyeglasses, which may
include the frames or mountings, per se, or the frames or
mountings with fitted opthalmic lenses. Included also are
spectacles and eyeglasses combined with other structural
elements when not otherwise classifiable, such as spectacles
combined with holders for microphotographs, telescopes or
face protecting masks.
Included also are perfecting features with these spectacles
and eyeglasses such as antiglare or light absorption, rear
view reflectors, decorations moisture prevention or
absorption, and supports or holders. Included also are parts
of spectacles and eyeglasses when not otherwise classifiable,
such as temples, bridges, connectors, lens linings or rims,
and nose pads or cushions.
Included also are opthalmic lenses or blanks, including the
eye-contact type. Included also are perfecting features in
these lenses such as with light filtering or with protecting
layers. Included also are methods of making the spectacles
and eyeglasses and the opthalmic lenses. Included also are
lens repair devices.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
A. EYE EXAMINING AND TESTING INSTRUMENTS CLASSIFIED
ELSEWHERE
Eye testing instruments and such instruments combined with
eye training devices are classified here as a residual home.
Eye treatment appliances and methods intended to aid in the
diagnosis of diseased eyes or during surgical operations of
the eye are elsewhere. (See References to Other Classes,
below.
B. SPECTACLE AND EYE GLASS MOUNTINGS COMBINED WITH OTHER
STRUCTURE
This class provides for opthalmic lenses combined with the
mountings or frames; and also provides residually for such
mountings or frames, per se, even when the sole indicated use
is to mount nonopthalmic lenses or other structure which may
be nonoptical. Examples of such nonopthalmic lenses are in
telescopes, microscopes, and general magnifiers; and examples
of this other structure are eye shades and goggle components
(such as cups, masks, or shields), artificial body members,
and electrical hearing aids. However, when these nonopthalmic
lenses or other structures are claimed either broadly or
specifically with the mounting, classification is not here,
but in the class providing for the particular lens or other
structure. See References to Other Classes, below.
As between this class, Class 2, and Class 623 the claiming of
opthalmic structure in such example terms as "opthalmic
lens", "correcting lens" and "astigmatic lens" is sufficient
for classification in this Class 351 regardless of any eye
shielding or artificial body structure included. However, as
between this Class 351, Class 381, and Class 359 the
inclusion of opthalmic structure together with other
structure, per se, classifiable in Class 381 and Class 359 is
not sufficient to classify in this Class 351.
The term "lens" due to its wide use is not sufficient to
control classification. The combination of the lens broadly
claimed together with the spectacle- type frame is
classifiable in this Class 351 regardless of the indicated
use of the lens.
C. GOGGLES
Goggles, which may include frames similar to the opthalmic
lens mountings as classified with spectacles, but which in
addition, have some structure whose purpose is protection of
the wearer from mechanical injury such as cups, masks,
shields, or hoods are classified elsewhere (see References to
Other Classes). When this goggle structure includes lenses
or transparent elements with some optical limitation such as
vision correcting or light intensity modifying opthalmic
elements, curved, spherical or meniscus lenses, light filters
or polarizing lenses, classification is with the spectacles
in this Class 351. However the broad recitation of a lens or
transparent element is not sufficient to include otherwise
goggle structure in this Class 351.
Goggles with no optical limitations but formed as spectacle
lens mountings, but omitting any body protection structure,
are classified in this Class 351. Where both the optical and
body protecting structure are claimed classification is with
the spectacles in this Class 351.
D. LENSES
Single lenses or lens combinations are classified elsewhere,
and are primarily used in the category of optical instruments
such as cameras, binoculars, magnifiers, telescopes,
microscopes and oculars, principally for the purpose of
forming or projecting a real or virtual image or images.
(See References to Other Classes, below.)
In contrast to the above lenses used in instruments the
opthalmic lenses including contact lenses classified in this
Class 351 act as vision correcting organs and are specially
adapted for use in spectacles or eyeglasses for the purpose
of producing a clear image in conjunction with the eye lens
on the sensitive screen in the eye known as the retina. For
example, if the eye is myopic (near-sightedness) a negative
lens is necessary to produce a proper image on the retina,
and if the eye is hyperopic (far-sightedness) a positive lens
is added to bring the light rays into correct focus on the
retina. If the eye is astigmatic a cylindrical lens is
added. These opthalmic lenses are essentially useful with
the eye lens for aiding and correcting any visual defects of
the eye lens.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
2, Apparel, appropriate subclasses for goggles including eye
shields, bridges, rims and fasteners as component parts
thereof. See Lines With Other Classes and Within This Class,
C, "Goggles", above, for the line between spectacles and
goggles.
2, Apparel, subclass 13 for spectacle attached eye shades
and subclasses 10, 11, 12, and 15 provide for other eye
shields. (Lines With Other Classes and Within This Class, B,
"Spectacle and Eye Glass Mountings Combined with Other
Structure")
2, Apparel, subclasses 426+ provides for goggles, which may
include frames similar to the opthalmic lens mountings as
classified with spectacles, but which in addition, have some
structure whose purpose is protection of the wearer from
mechanical injury such as cups, masks, shields, or hoods.
(Lines With Other Classes and Within This Class, C,
"Goggles")
16, Miscellaneous Hardware, subclass 228 for an eyeglass
hinge, per se.
24, Buckles, Buttons, Clasps, etc., subclass 265 for
connectors and attaching devices useable between component
parts of spectacle frames.
29, Metal Working, subclass 20 for machines and processes
for making spectacle-frames, temples, bridge pieces etc.
33, Geometrical Instruments, subclass 200 for spectacle
gauges such as used for measuring pupillary distances.
65, Glass Manufacturing, subclasses 36-39 for fusion
bonding of lenses and reshaping of lens parts during
bonding.
70, Locks, subclass 229 and 230 for bolt or screw locking
means as for preventing the loosening of screws which
interconnect various frame parts or secure rimless lenses in
the frame structure.
206, Special Receptacle or Package, subclasses 5+ for cases
or covers for eyeglasses and spectacles which may comprise
hinged parts.
248, Supports, appropriate subclasses, especially subclasses
121+ for brackets, stands or uprights which may support
ophthalmic test devices and which may have provisions to move
an ophthalmic device relative to the support.
252, Compositions, subclass 299.01 for liquid
crystal-containing optical filter compositions, and
subclasses 582+ for other optical filter compositions which
change their light and visible solar radiations transmittance
properties when exposed to emergy and for corresponding
filters defined solely in terms of their composition with no
claimed significant filter structure.
285, Pipe Joints or Couplings, subclass 51 and 54 for joints
between members of ophthalmic mountings wherein the joint
comprises a socket type or a ball and socket joint.
315, Electric Lamp and Discharge Devices: Systems, subclasses
291+ for illuminating means having electric current and/or
voltage regulation.
359, Optics: Systems (Including Communication) and Elements,
subclass 465 for light polarizing devices, as used in
stereoscopic viewing, subclasses 642+ for lenses as used in
photography, binoculars and telescopes; subclasses 409+ for
opera glass holders; subclass 481 for binocular loupes;
subclass 816 for monocular loupes, subclasses 880+ for
mirrors mounted before the eye; and subclasses 350+ and 885+
for optical filters.
359, Optics: Systems (Including Communication) and Elements,
subclasses 409+ for opera glass holders, subclass 481 for
binocular loupes, and subclass 816 for monocular loupes.
(Lines With Other Classes and Within This Class, B,
"Spectacle and Eye Glass Mountings Combined with Other
Structure")
359, Optics: Systems (Including Communication) and Elements,
subclasses 642+ for single lenses or lens combinations,
primarily used in the category of optical instruments such as
cameras, binoculars, magnifiers, telescopes, microscopes and
oculars, principally for the purpose of forming or projecting
a real or virtual image or images.
362, Illumination, subclasses 103+ for spectacles combined
with illumination means, and subclasses 109+ for ophthalmic
instruments comprising illuminating devices.
381, Electrical Audio Signal Processing Systems and Devices,
subclasses 68+ for electric hearing aids in spectacle-type
mountings, especially subclass 68.5 for spectacles or
ophthalmic mountings combined with electrical hearing aid
devices. (Lines With Other Classes and Within This Class, B,
"Spectacle and Eye Glass Mountings Combined with Other
Structure")
403, Joints and Connections, for joints and connections of
general application.
411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or
Locked-Threaded Fastener, subclasses 378+ for screws and
bolts of general application; and subclasses 531+ for washers
of general application.
427, Coating Processes, subclasses 162+ for coating
processes, per se, wherein the product is an electrical
element.
451, Abrading, subclasses 42+ for an ophthalmic lens
abrading process and subclasses 57+ for an abrading process
for plural distinct areas.
501, Compositions: Ceramic, subclasses 11+ for glass
composition; especially subclasses 60+ for lead containing
glass composition.
520, Synthetic Resins or Natural Rubbers, for synthetic
resins or natural rubbers, per se, or compositions containing
same.
523, Synthetic Resins or Natural Rubbers, subclasses 105+
for contact lens compositions and for certain other
compositions containing a synthetic resin or natural rubbers
designed to come into contact with living tissue.
600, Surgery, subclasses 398+ and 558 for surgical devices
used in the diagnosis of the eye generally and not involving
conventional eye testing instruments, or for devices
counteracting muscular eye imbalances, or for devices such as
moving targets for exercising eye muscels. See Lines With
Other Classes and Within This Class, above, for the line
between the eye testing instruments of this Class 351 and the
surgical instruments of another class of Surgery.
600, Surgery, subclasses 398+ for eye treatment appliances
and methods intended to aid in the diagnosis of diseased eyes
or during surgical operations of the eye. See Lines With
Other Classes and Within This Class, A, "Eye Examining and
Testing Instruments Classified Elsewhere", above.
GLOSSARY:
ANISEIKONIA
The inequality in shape and size between the two ocular
images seen in binocular vision.
ASTIGMATISM
Defect of vision caused by unequal curvature of the
refracting surfaces of the eye.
BINOCULAR COORDINATION
Fusion of the sight responses of both eyes, or correct space
perception.
BRACE ARM
A relatively long and slender temple supporting arm or arc
substantially identical to the shape of the upper contour
edge of a lens.
BRIDGE
The connecting part between the lens supporting members of
spectacles or eyeglasses.
CATARACT CORRECTION LENS
A lens, usually with cylindrical correction, to optically
compensate for diminution of vision or opacity of the lens of
the eye.
CHARTS
A light reflecting or transmitting panel with symbols or
pictures of varying size for testing the refraction of the
eye.
CHROMATICITY TEST
Determination of the visual sensitivity or adaptation to
color.
ELEMENT
Component part of an optical instrument unless otherwise
indicated.
EYEGLASSES
Spectacles, pince-nez or other mountings with lenses to
correct defects of vision of the human eye.
EYE CONTACT LENSES
Opthalmic lenses that fit over the cornea of the eye and
which float on the tear of the eye or are held in place by
the eyelids.
FRAME
Mechanical parts, not including lenses, which serve to
surround or support or which serve to interconnect elements
of the frame.
INTERPUPILLARY DISTANCE
The distance between the centers of rotation of a pair of
human eyes.
LENS
Ophthalmic lens or transparent material in goggles unless
otherwise indicated.
LENS REPAIR DEVICES
Structure embracing the broken portion of a lens by a metal
or plastic strip so that the lens can be restored to the
mounting.
LIGHT POLARIZING LENSES
Lenses comprising a polarizing element which reduces light
losses due to reflection.
MOUNTING
A frame structure completely or partially surrounding a lens
or utilizing a bridge and nose pads for supporting
vision-aids in front of the eyes of a user. This term is
broader than "frame", in that it includes the pince-nez
type.
MULTIFOCAL LENSES
Fused or onepiece lenses having areas of different refracting
powers, usually one area part being intended for distant
vision and the other for close work.
MUSCULAR IMBALANCE
Abnormal eye muscle functioning, tending the eyes to cross or
diverge.
OPTHALMIC LENSES
Lenses usually mounted in spectacle frames, in eyeglass
mountings or in trial frames having cylindrical, spherical or
prismatic power for testing or correcting visual deficiencies
of the eye. These lenses cooperate with the refracting
medium of the eye to form on the retina a clear image of the
object viewed, or in strabismus to modify the imbalanced
visual axis of the eye to make the eye gradually resume
normal status to correctly superimpose deviated images. The
lenses may be spherical (plus or minus) to correct for fairly
simple defective near or far sightedness, or they may be
cylindrical to correct for astigmatism, or they may be
prismatic to correct for strabismus, or they may be any of
these in combination. The magnification or minification
power of these lenses serves primarily to produce clear
images on the retina of an eye with poor vision rather than
to produce any telescopic, microscopic or pictorial effects.
OPTICS, OPTICAL
The science of light and vision and the construction of
optical instruments.
OPTICAL PATH
Imaginary lines passing on the principal and secondary axes
from the center of the retina to the object viewed.
OPTOMETRY
The art of investigating vision defects such as refraction
and ocular muscle function-defects and correcting or aiding
them by optical means such as opthalmic lenses, prisms,
muscle training and other optical measures.
PRISMATIC LENS
A light-deflecting medium which diverges or converges the
lightrays entering the eyes.
RIM
A grooved-optical element made from metal or plastic material
for framing lenses.
SPECTACLES
Instruments for aiding vision consisting of lenses and
supports therefor.
STEREOSCOPIC VISION
The ability to perceive distance and the three dimensional
properties of a viewed object.
TEMPLES
The parts of a spectacle which are secured to the end of
lenses or the frame and maintain the glasses on the user's
head.
TRIAL FRAME
Adjustable lens holding frames for supporting lenses
interchangeably during vision testing.
VISION CORRECTING
Remedying vision defects by means of sight correcting lenses,
eye muscle training devices, etc.
SUBCLASSES
Subclass:
41
This subclass is indented under the class definition. Subject
matter including an ophthalmic element or elements such as a
spherical or cylindrical lens, a filter, polarizing element,
or prism interposed in the path of vision of one or both eyes
for correcting vision defects or abnormalities or protecting
the eyes from undesired rays together with structure for
positioning or supporting these elements from or on the head
of the user in correct operative position.
(1) Note. The lenses of this subclass give usually a
particular ophthalmic result in cooperation with the eye as
opposed to lens systems such as used in cameras, microscopes
or telescopes which may operate independently and without
producing a corrective reaction in the eye or its element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 for trial frames.
SEE OR SEARCH CLASS:
2, Apparel, subclass 13 for spectacle attached shades, and
subclasses 426+ for goggle-type spectacles. See the class
definition for the line between spectacles as classified here
and goggles as classified in Class 2.
359, Optics: Systems (Including Communication) and
Elements, subclass 465 for light polarizing devices as used
in stereoscopic viewing, subclasses 466+ for stereoscopic
viewers; subclasses 642+ for lenses as used in photography,
binoculars and telescopes; subclasses 409+ for opera glass
holders; subclass 481 for binocular loupes; subclass 816 for
monocular loupes, and subclasses 350+ and 885+ for optical
filters.
Subclass:
42
This subclass is indented under subclass 41. Subject matter
limited to eyeglass repairing devices whereby a broken lens
of a pair of eyeglasses may be temporarily repaired until a
new lens is available, as for example a metal member or a
transparent wafer strongly clamped onto or cemented to the
broken lens parts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
177 and 178, for methods of making spectacle lenses and
spectacles not otherwise classifiable.
Subclass:
43
This subclass is indented under subclass 41. Subject matter,
wherein a light-weight float is removable attached to a
spectacle frame for recovering glasses accidentally dropped
into the water, or wherein the spectacles are especially
adapted for underwater use as to enable the human eye to
accommodate for distortionless viewing of objects under
water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
62 for spectacles with moisture prevention as absorption.
SEE OR SEARCH CLASS:
2, Apparel, subclasses 426+, and particularly 428+ and 440+
for goggles which protect the eyes from the water.
Subclass:
44
This subclass is indented under subclass 41. Subject matter,
including light absorbing lenses such as polarizing or
colored lenses either framed or rimless, to shield the eyes
of a wearer from the glare of the sun or from other
undesirable or harmful light rays.
(1) Note. For classification here the lenses need not have
diopter characteristics, but only general light modifying
characteristics such as light filtering, polarizing, or
absorbing. See Class 359, subclasses 483+ for polarizers,
subclasses 601+ for optical elements and systems for reducing
glare and subclasses 885+ for optical filters.
SEE OR SEARCH CLASS:
2, Apparel, subclasses 10-15 for eye shades and subclasses
426+ for goggles. See Lines With Other Classes and Within
This Class in the Class Definition of this class (351) for
the line between the subject matter classified here and in
subclasses 426+ of Class 2.
359, Optics: Systems (Including Communication) and Elements,
see (1) Note above.
Subclass:
45
This subclass is indented under subclass 44. Subject matter,
wherein antiglare spectacles are provided with lenses having
combined a clear-glass section and a section or sections of
different light absorption, the latter covering only a part
of the field of sight, so that without imparting the general
vision the eyes may be screened from an undesirable light
source by a slight movement of the head.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49 for eye protection devices utilizing polarizing lenses.
Subclass:
46
This subclass is indented under subclass 44. Subject matter,
wherein antiglare spectacles comprise semitransparent or
opaque plates having adjustable or fixed perforations or
slits therein.
SEE OR SEARCH CLASS:
2, Apparel, subclass 433 for eye protecting goggles, which
may include apertured opaque members, having no significant
optical characteristics but being solely for providing
mechanical eye protection.
Subclass:
47
This subclass is indented under subclass 44. Subject matter,
including colored or other antiglare filter screens removably
or adjustably connected with spectacle frames of various
styles or sizes.
(1) Note. The filters or shades may be rimmed or rimless
and they may cover portions of the glasses only or the entire
glasses. The filters or screens classified here are usually
combined with the spectacles. Subclass 13 of Class 2
provides for eye shades, per se, which are attachable to
spectacles. Semiopague or tinted transparancies which swing
selectively between the shading and viewing position are
classified in this subclasses 47+.
SEE OR SEARCH CLASS:
2, Apparel, subclass 13 for spectacle attached shades. See
also (1) Note above.
Subclass:
48
This subclass is indented under subclass 47. Subject matter,
wherein the filters or screens are securely mounted on or
readily attached to spectacles by integral or bridge-type
spring means which hold the light absorbing mediums in
different operative positions desired by the wearer.
(1) Note. See (1) Note under subclass 47 above.
Subclass:
49
This subclass is indented under subclass 44. Subject matter,
wherein variable density lenses or viewing screens comprise
fixed or adjustable superimposed light polarizing bodies
which may be adjusted to filter any amount of light from a
predetermined maximum to a predetermined minimum.
(1) Note. The above noted lenses with light polarizing
characteristics may be rotatably mounted in one frame of the
general shape of a conventional spectacle frame, or may be in
a submounting held detachably adjacent and overlying lenses
fixed in an ordinary spectacle frame.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
subclass 465 for polarizing devices used in viewing
stereoscopic pictures; and subclasses 483+ for polarizing
devices generally.
Subclass:
50
This subclass is indented under subclass 41. Subject matter
including one or more mirrors together with structure for
supporting or attaching the mirror or mirrors on a part of
the spectacle to provide rear vision for the spectacle
wearer.
(1) Note. For classification here the spectacle must be
claimed broadly or specifically with the mirror. For mirrors
which are adapted for use with spectacles as by being
supported thereon, or attached thereto, no spectacle
structure being positively claimed, see Class 248, subclasses
466+.
SEE OR SEARCH CLASS:
2, Apparel, subclasses 426+, and particularly 438 for goggles
which may include rear vision mirrors.
248, Supports, subclasses 466+ for mirrors generally with
supports.
Subclass:
51
This subclass is indented under subclass 41. Subject matter,
wherein a spectacle frame or its ophthalmic lens is
ornamented with decorative attachments or inserts.
(1) Note. The above noted ornamental attachments may be
colored stripes, decorated plates, pendant jewels or
imitations thereof, and may be placed on any selected portion
of the spectacle frame or lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
105 for brace arm mountings with detachable brace arm.
SEE OR SEARCH CLASS:
63, Jewelry, subclass 1.1 and 2, for combination articles
and various jewelry articles.
428, Stock Material or Miscellaneous Articles, subclasses
3-32 for miscellaneous ornamented articles and subclass 67
for a element embedded in a substrate (e.g., spectacle frame)
and visible.
Subclass:
52
This subclass is indented under subclass 51. Subject matter,
wherein the decorative devices are so attached to the various
frame or lens parts as to be readily removable therefrom.
Subclass:
53
This subclass is indented under subclass 41. Subject matter
is limited to spectacles peculiarly adapted for the aiming of
firearms.
(1) Note. Included here are "shooting" spectacles having
screens with slots or diaphragms, discs with rotatably and
movably arranged openings, adjustable aiming lenses or
stenopaic disc apertures.
Subclass:
54
This subclass is indented under subclass 41. Subject matter
wherein spectacles with multifocal lenses may be inverted or
turned upside down as a unit, or in which the lenses, per se,
may be revolved inside the frame so that bifocal segments may
stand at the top or bottom of the lenses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
115 for reversible or axially rotatable temples.
Subclass:
55
This subclass is indented under subclass 41. Subject matter,
wherein the mounting is adjustable to permit vertical
movement of multifocal lenses to selectively position the
near and distance vision portions in the line of vision.
(1) Note. The adjustment of the lenses may be made by
changing the position of the nose pads on their supporting
arms or by varying the distance between the pads by moving
rotatable portions of the bridge to adjusted positions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
54 for spectacles whose lenses are inverted by rotation.
107 for adjustable brace or mountings.
137 for adjustable nose pads or cushions.
148 for adjusting or slidable connectors.
Subclass:
56
This subclass is indented under subclass 41. Subject matter,
including an elongated handle attached to the frame for
holding the glasses in the viewing position, the handle
constituting the sole support for the glasses in this viewing
position.
(1) Note. The eyeglasses of this type are usually folding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 63+ for foldable spectacles and eyeglasses.
subclasses 155+ for eyeglass supports or holders.
Subclass:
57
This subclass is indented under subclass 41. Subject matter
wherein supplemental lenses or glasses without temples are
movably attached to permanent reading or farsight main
spectacles.
(1) Note. The above noted supplemental glasses may comprise
U-shape or half moon lenses below eye level. They may be
pivotable or magnetically attached to normal spectacles. The
subject matter does not include supplemental glasses attached
to frames without permanent lenses. See subclass 59 for this
subject matter. The lenses may be plain glass as for
protecting purposes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 44+ for eyeglasses and spectacles with antiglare
or shading structure.
61 for spectacles with U-shape or half-moon lenses below eye
level.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
subclass 481 for binocular loupes and subclass 816 for
monocular loupes.
Subclass:
58
This subclass is indented under subclass 57. Subject matter
wherein the supplemental lenses or glasses are retained on
the main eyeglasses by spring loaded clamping members or by
circumferentially secured friction clips.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 47+ for clip-on antiglare or shading
spectacles.
Subclass:
59
This subclass is indented under subclass 41. Subject matter
wherein mounted or rimless lenses are movably connected to
glassless spectacle frames or glassless support rods to swing
from an operative position in the line of vision to an
inoperative position above the eyes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 57+ for spectacles including lenses with
additional lenses which pivot in and out of the optical
path.
60 for spectacles whose lenses are mounted on or suspended
from rods or bars, and which may be adjusted along the rod or
bar.
Subclass:
60
This subclass is indented under subclass 41. Subject matter
wherein rimless or rimmed lenses are suspended from or
mounted on a usually rectilinear rod, or are suspended from
or mounted on oppositely extending bars embodying nose
engaging means.
(1) Note. The lenses in the above structure may be
adjustable in various spaced relations to each other. The
points of connection of the lenses and temples with the bar
or rod are generally outside of the range of vision.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 57+ for spectacles with auxiliary lenses movable
in and out of the optical path.
107 for brace-arm-type mountings with adjustable lenses.
subclasses 133+ for bridges with connectors or straps.
Subclass:
61
This subclass is indented under subclass 41. Subject matter
having lenses of narrow vertical dimension which lie well
below the horizontal line of vision and provide unobstructed
vision over the top of the lenses.
(1) Note. This subject matter is distinct from and does not
include eyeglasses with conventional full size area or
multifocal lenses. The lenses here are of approximately
one-half or one-third normal lens area and are without lenses
at the top.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 168+ for multifocal lenses generally.
Subclass:
62
This subclass is indented under subclass 41. Subject matter
wherein lens retaining rims are provided with moisture
reducing and air-ventilating openings, or wherein a sweat or
moisture absorbing cushion is mounted between the lens rims.
SEE OR SEARCH THIS CLASS, SUBCLASS:
43 for floating or underwater spectacles.
154 for lens linings or rims.
Subclass:
63
This subclass is indented under subclass 41. Subject matter
in which the frame of the spectacles (usually in the central
part of the bridge or temple) may be folded or otherwise
adjusted so that portions of the frame, usually the lens
portions are superposed to lie one upon the other, but which
are in the same plane and alignment when unfolded and opened
for use.
(1) Note. The temples in the above folding spectacles may
each consist of two pivotally connected folding portions, or
may be made of one short piece generally not longer than the
spaced lens rims. However, spectacles where the temples fold
on their hinges to lie along the remaining frame structure is
not provided for here but in the particular mounting
subclasses below.
Subclass:
64
This subclass is indented under subclass 63. Subject matter
limited to folding eyeglasses of the pince-nez-type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 65+ for pince-nez-type glasses generally.
Subclass:
65
This subclass is indented under subclass 41. Subject matter
limited to eyeglasses which are provided with nose gripping
means for supporting the lenses before the user's eyes.
(1) Note. The subject matter here is distinct from and does
not include eyeglasses where the support is by temples
bearing upon the ears or sides of the user's head. See the
indented subclass 66 for pince-nez-type glasses with a
temple.
(2) Note. This and the indented subclasses provide for
bridges, nose grips, and nose pads which are intended for use
with pince-nez eyeglasses as indicted for example by the
pince-nez background of the patent.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 for folding pince-nez-type glasses.
subclasses 124+ for bridges generlly, subclasses 131 and
132 for bridges with nose grips or guards; and subclass 132
for bridges with nose pads or cushions.
subclasses 136+ for nose pads or cushions generally.
Subclass:
66
This subclass is indented under subclass 65. Subject matter
wherein a temple or a chain with a hook is attached to the
lens or rim, as for steadying the pince-nez in position or
for preventing the glasses from falling.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 111+ for temples generally.
subclasses 155+ for spectacles generally with supports or
holders.
Subclass:
67
This subclass is indented under subclass 65. Subject matter
wherein rimless or rimmed lenses are connected by a bridge
(usually spring) and by a supplemental bridge.
(1) Note. The subject matter here may provide proper
adjustment of the tension of the spring bridge, may serve for
setting the lenses at the correct pupillary distance, or may
be used for shifting the lenses in a vertical plane.
SEE OR SEARCH THIS CLASS, SUBCLASS:
68 for a pince-nez having a resiliently extensible bridge.
subclasses 124+ for bridges generally.
227 for bridges in trial frames.
Subclass:
68
This subclass is indented under subclass 65. Subject matter
wherein the lenses are connected by a bridge which may be
extended in length against the biasing action of a spring as
where the bridge comprises two arms sliding one beside or
within the other together with an expandable spiral spring
around the arms to force the lenses nearer together and the
nose grips into contact with each side of the nose.
(1) Note. The bridge may extend tangentially along the top
edges, behind, or in the plane of the lenses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
65 for pince-nez eyeglasses with flexible bridges or bow
springs as where the bridge itself is made from flexible
material.
Subclass:
69
This subclass is indented under subclass 65. Subject matter
including a resilient bridge or a bridge having resilient
portions, the lenses being capable of swinging movement so
that a separating motion of the nose grips is produced.
(1) Note. The above noted spring-bridges may have loops
arranged in front or in the rear of the lens planes whereby
the elasticity of the bridge material produces pressure on
the nose grip to retain the glasses in position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 126+ for flexible bridges generally.
Subclass:
70
This subclass is indented under subclass 65. Devices wherein
the bridge or bow spring, the lens connectors or holders, and
the nose guards have a common junction, as by being
interconnected within a box by a screw or pin.
(1) Note. In the embodiment here a fastener or locking
device may be inserted or forced into the stud-box to prevent
loosening or displacement of the frame members.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 140+ for connectors generally.
Subclass:
71
This subclass is indented under subclass 65. Subject matter
wherein the nose grips or guards are formed of resilient
material or are combined with a spring to bias the guards
with respect to the bridge to properly engage the nose and
retain the glasses thereon.
(1) Note. In the modification here the guards may be
actuated by flexible portions in the bow springs, by coil
springs interposed between lens mountings and the
nose-engaging member, or by moving the lenses forwardly
against the resiliency of a bridge portion. However, for
classification in this subclass the nose guards must be
biased with respect to at least a portion of the bridge which
remains rigid. A mere bridge of resilient material and
flexible over its length is not provided for here but in the
generic subclass 65 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88 for continuous rim mountings with adjustable nose
guards.
Subclass:
72
This subclass is indented under subclass 71. Subject matter
wherein the nose grips include two finger-engaging lever
portions, both being biased as by helical or leaf springs.
SEE OR SEARCH CLASS:
267, Spring Devices, for spring structures generally.
Subclass:
73
This subclass is indented under subclass 72. Devices wherein
the grips are supported and/or biased by a strip of flat
spiral or leaf-type spring.
Subclass:
74
This subclass is indented under subclass 72. Devices wherein
pivoting nose grips are activated by springs mounted on the
under side of the bridge.
Subclass:
75
This subclass is indented under subclass 72. Devices wherein
the nose grips are actuated by springs which are retained and
covered by a hollow cup or barrel.
(1) Note. In the modification here the pivot and spring
that actuate the guard lever may be mounted and contained
within a recess cut away from a portion of the lens rim.
Subclass:
76
This subclass is indented under subclass 65. Subject matter
wherein the nose grips or pads can be adjusted on their
supports in one or more directions so as to fit any shape of
nose.
(1) Note. The subclass provides for adjustable nose grips
or pads intended for use with pince-nez eyeglasses as
indicated for example by the general pince-nez background in
the patent. The above nose grips or pads are usually
adjustable laterlly and longitudinally and may be secured in
the selected position. The modification here includes also
nose grips or pads which are rockably connected to the
support, or which are made from bendable or flexible
material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
71 for pince-nez eyeglasses with spring- biased nose guards,
whose spring permits adjustment.
88 for adjustable nose guards incontinuous rim type lens
mountings.
137 for adjustable or rockable nose pads or cushions
generally.
Subclass:
77
This subclass is indented under subclass 76. Subject matter
wherein the nose grips or pads are connected with the
pince-nez bridge or spring by ball-and-socket joints to cause
the grips or pads to assume the proper and most suitable
position relative to the nose.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 140+ for spectacle and eyeglass connectors
generally.
Subclass:
78
This subclass is indented under subclass 65. Subject matter
wherein resilient, soft or padded elements are attached to
the metallic nose grips or guards which wear on the nose of a
wearer to support pince-nez- type eyeglasses.
(1) Note. This subclass provides for nose pads or cushions
intended for use with pince-nez eyeglasses as indicted for
example by the general pince-nez background in the patent.
SEE OR SEARCH THIS CLASS, SUBCLASS:
132 for bridges combined with nose pads or cushions.
136 for nose pads or cushions generally.
Subclass:
79
This subclass is indented under subclass 78. Subject matter
in which a supplemental pad or supplemental nose engaging
portions are provided on the main bearing pad for increased
gripping action.
Subclass:
80
This subclass is indented under subclass 78. Subject matter
wherein the nose pads or the supporting guards are provided
with means whereby the pads may be readily attached or
detached for removal or replacement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
138 for detachable nose pads or cushions generally.
Subclass:
81
This subclass is indented under subclass 78. Subject matter
wherein the exposed faces of the nose pads have depressions
or grooves, or the pad surfaces are provided with serrations
or corrugations to firmly secure the eyeglasses to the nose.
Subclass:
82
This subclass is indented under subclass 78. Subject matter
wherein the nose contacting portion of the pad or bridge
includes a tube or sac filled with a liquid or a filler of
nonhardening material, or wherein nose pads or bridges have
cups or shells to firmly grip the nose by suction.
Subclass:
83
This subclass is indented under subclass 41. Subject matter
wherein undivided continuous metal or plastic lens
surrounding rims are connected by a bridge and are provided
with end pieces and hinges to pivotally connect temples with
the rims.
(1) Note. The above continuous lens rims are usually made
from plastic base materials and are conventionally
interconnected by an integral plastic bridge. Included here
are nonmetallic lens rims interconnected by a metal bridge
which may be detachably secured to the rims.
SEE OR SEARCH THIS CLASS, SUBCLASS:
154 for lens linings and rims.
SEE OR SEARCH CLASS:
2, Apparel, subclasses 426+, and particularly 439 holding
rims in goggles.
Subclass:
84
This subclass is indented under subclass 83. Subject matter
wherein multifocal lenses can be rotated in the lens rims
around an axis perpendicular to the surface of the lenses so
as to bring any desired power sector into the field of
vision.
(1) Note. Each lens may be revolved separately and
independently of the other or the lenses may be
simultaneously rotated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49 for rotatable mounts for polarized lens elements.
Subclass:
85
This subclass is indented under subclass 83. Subject matter
wherein grooved lens holder rims are formed with slots in
their upper portion through which lenses may be inserted or
removed.
(1) Note. The slots may be closed by pivoted arms after
insertion of the lenses. The lenses may be supported in a
separate mounting which is removably inserted through the
rim-slots into the grooves of the lens holders.
SEE OR SEARCH THIS CLASS, SUBCLASS:
154 for lens linings and rims.
227 for trial frames.
Subclass:
86
This subclass is indented under subclass 83. Subject matter
wherein the rims have lens receiving grooves provided with
means to frictionally engage the peripheral edge of a lens,
or wherein a member projecting from the groove engages a
notch in the lens to prevent inadvertent rotation of the
lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
96 for lens-locking means in split rim mountings.
227 for trial frames.
Subclass:
87
This subclass is indented under subclass 83. Subject matter
wherein the lens rims are provided with integrally connected
nose guards or pads.
(1) Note. The guards or pads may have a wire meshed fabric
embedded therein or they may be slotted to receive the ends
of bridge arms.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 76+ and 78+, for nose pads in pince-nez
eyeglasses.
subclasses 136+ for nose pads or cushions.
Subclass:
88
This subclass is indented under subclass 83. Subject matter
wherein the nose pads are removably secured as by clamping
action on portions of the rims or where the pads can be
adjusted into any desired horizontal or longitudinal
position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 76+ and 80, for adjustable or removable nose
pads in pince-nez glasses.
137 and 138, for nose pads or cushions which are
respectively adjustable and detachable.
Subclass:
89
This subclass is indented under subclass 83. Subject matter
wherein symmetrically arranged brace bar temple supports
follow substantially the upper contour shape of the lens
rims.
(1) Note. The arms may extend upwardly from the rims or may
be set into a groove provided in the upper edge of the rims.
The brace arms however are distinct from the rims.
SEE OR SEARCH THIS CLASS, SUBCLASS:
93 for brace arms in split rim mountings.
subclasses 103+ for brace arm or semirimless mountings.
125 for brow-bar-type bridges.
Subclass:
90
This subclass is indented under subclass 41. Subject matter
wherein lens holding rims connected by a bridge are divided
or separated at one point on their periphery.
(1) Note. Usually the rims are split at their temporal
sides and have endpieces or lugs which serve to lock the rim
members around the lenses and also carry temple supporting
hinges. The above rims may be formed from metal or plastic
material. The rim-splits may be in line with, above or set
at an angle to the center of the lenses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 65+ for split lens holding rims in pince-nez
eyeglasses.
154 for lens linings and rims.
Subclass:
91
This subclass is indented under subclass 90. Subject matter
wherein divided lens holding rims are provided with metallic
or plastic top arms or brow pieces which may be
interchangeably or permanently connected to the rims.
(1) Note. The brow pieces or top arms are either single
units fitted separately to the upper portion of each rim or
may consist of a pair of top arms connected to each other at
their inner portions by a bridge. Nose pads may be
integrally connected with, or may be adhesively secured to
the top arm.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 51+ for spectacles with ornamentation or
decoration.
125 for brow-bar-type bridges.
131 for nose grips integral with the bridge.
Subclass:
92
This subclass is indented under subclass 91. Subject matter
wherein the lenses are retained within the mounting as by
spring tension members, resilient clamping rims, hinged
clasps or by hinged frame-portions acting as enclosures for
the lens without the use of rivets, screws or other more
conventional fastening devices, thereby making the lenses
readily removable and interchangeable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
79 for connectors with clamping arms.
106 for screwless lens mountings in brace arm or semirimless
spectacles.
125 for bridges with brow bars.
subclasses 133+ for bridges with connectors or straps.
229 for lens supports in trial frames.
Subclass:
93
This subclass is indented under subclass 90. Subject matter
wherein brace bars usually resilient are secured to and
extend laterally along or above the top of divided rims.
(1) Note. The brace bars carry lens rim support and/or
temple-hinge means, and provide a wide range of adjustment to
different facial requirements. In this subclass the lens
rims may have split ends at the nasal or at the temporal side
thereof. The split ends may be at the horizontal center
line, or may be above the center line and above the useful
field of vision.
SEE OR SEARCH THIS CLASS, SUBCLASS:
89 for brace bars in continuous rim mountings.
subclasses 103+ for brace bar mountings generally.
125 for brow-bar-type bridges.
Subclass:
94
This subclass is indented under subclass 90. Subject matter
wherein an auxiliary bridge member is detachably or rigidly
attached to the primary bridge.
(1) Note. The auxiliary bridge member may include pivotable
or fixedly secured nose pad members, and may be made of any
suitable material such as plastic or metal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for auxiliary adjustable bridges.
67 for supplemental bridges in pince-nez eyeglasses.
132 for bridges with nose grips.
Subclass:
95
This subclass is indented under subclass 90. Subject matter
wherein the size of the lens receiving opening of the rims
can be expanded or contracted at the split-ends for properly
securing different sizes of lenses in the rims.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 83+ for continuous rim mountings where the rim
may be expandable and contractable.
154 for rims, per se.
Subclass:
96
This subclass is indented under subclass 90. Subject matter
wherin a lens lock positioned between rim and lens or between
the separable members of a split rim-joint projects into a
notch or recess formed in the periphery of the lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 for lens-locking means in continuous rim mountings.
149 for connectors with interengaging projections and
recesses.
Subclass:
97
This subclass is indented under subclass 90. Subject matter
wherein the arms projecting from the divided protions of lens
rims are drawn together by embracing U-type clamps or by
pivoting toggle levers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
152 for connectors with clamping arms.
Subclass:
98
This subclass is indented under subclass 90. Subject matter
wherein the lens rims are divided adjacent to the bridge at
the nasal side of the rims, the temporal edges of the split
rims being continuous and without the conventional rim
connecting arms or studs.
(1) Note. Included here are frames made from plastic
material wherein the bridge is divided lengthwise to provide
split lens rim portions.
Subclass:
99
This subclass is indented under subclass 95. Subject matter
wherein the divided rims carry aligned end piece lugs
provided with a lens rim clamping-screw and a temple
retaining dowel remove from the clamping screw.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121 for temples with connections.
140 for connectors.
Subclass:
100
This subclass is indented under subclass 90. Subject matter
wherein the opposite end of a divided rim terminate in
aligned lugs which are drawn together by a single screw which
tightens the rim around the lens and also affords a pivot for
a temple.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121 for temples with connections.
140 for connectors.
Subclass:
101
This subclass is indented under subclass 90. Subject matter
wherein nonmetallic divided lens rims are connected with the
bridge on the nasal side and with temple hinge parts on the
temporal side by short sections of metallic tubing
surrounding the rims.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121 for temples with connections.
133 for bridges with connectors or straps.
154 for linings and rims.
Subclass:
102
This subclass is indented under subclass 90. Subject matter
wherein each lens frame is formed by an inner metallic rim
combined with and covered by an outer nonmetallic rim.
(1) Note. The combined rims are usually split at their
temporal sides and the metallic rim carries rim locking and
temple supporting means. However, each lens frame may
comprise a split outside metallic rim combined with an inside
continuous nonmetallic rim or vice versa, for resiliently and
accurately mounting a lens in the frame.
SEE OR SEARCH THIS CLASS, SUBCLASS:
154 for linings and rims.
Subclass:
103
This subclass is indented under subclass 41. Subject matter
wherein laterally extending and symmetrically arranged bars
extend from the bridge to the temple connection or where such
bars are disposed over the lenses to connect with the temples
to leave a portion of each lens free or rimless.
(1) Note. The brace arms may extend rearwardly or upwardly
from the lenses and may be associated into one single element
which is connected with the bridge. For brace arms extending
along the edge of the lens see subclass 109. For brace arms
which support a lens at two spaced points see subclass 108.
The brace arms are usually resilient.
SEE OR SEARCH THIS CLASS, SUBCLASS:
89 for brace arms in continuous rim mountings.
125 for brow-bar-type bridges.
Subclass:
104
This subclass is indented under subclass 103. Subject matter
where the brace arms or semirims are made from nonmetallic
material or from plastic material reinforced by metal
embracing the upper contour edges of the lenses, and secure
both the lenses and the temples rigidly to the rim sections.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102 for combined metal and plastic split rim mountings.
108 for brace arms supporting a lens at two spaced points.
117 and 129, for reinforced temples and bridges
respectively.
Subclass:
105
This subclass is indented under subclass 103. Subject matter
wherein the mounting is made up as a unit of detachably
interconnected members such as the brace arms, bridge and/or
nose pad supports.
(1) Note. The detachable mounting may comprise a central
bridge member having brace arms and brackets attached thereto
to detachably couple the bridge with its brace arms to
conventional eyeglasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 140+ for connectors joining parts of
spectacles.
Subclass:
106
This subclass is indented under subclass 103. Subject matter
wherein the lenses are attached to the mounting as by
channel-like straps clamping the nasal edges of the lenses or
by small arms which engage the upper surface of the peripery
of the lenses, but without the use of screws, rivets, or
other fasteners extending through the lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
149 for connectors having a projection which engages a lens
recess.
152 for connectors with clamping arms.
Subclass:
107
This subclass is indented under subclass 103. Subject matter
wherein the brace arms may be readily adjusted to various
positions to conform to the shape of the lenses or wherein
each lens is individually adjustable relative to the brace
arm.
SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for lenses vertically adjustable during use.
148 for strap-type connectors which permit adjustment of the
lens.
Subclass:
108
This subclass is indented under subclass 103. Subject matter
wherein hinged or fixed lens-straps or brackets are mounted
on the brace arms and secure the lenses at two spaced points,
or where the brace arms have a longitudinally extending
portion bearing against the upper contour of the lenses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
133 for bridges with connectors or straps.
subclasses 142+ for strap-type lens connectors.
Subclass:
109
This subclass is indented under subclass 103. Subject matter
wherein relatively long and slender brace arms extend
substantially along the upper contour edges of the lenses
only and terminate in temple connections.
(1) Note. Where the brace arm actually engages or bears
against the edge of the lens, classification is not here, but
in such subclasses as 89, 93 and 108 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125 for bridges with brow bars.
Subclass:
110
This subclass is indented under subclass 41. Subject matter
where the edges of the lens are free of any structure such as
a rim around substantially all the perimeter.
(1) Note. In this subclass the sole edge structure is the
connections to the other frame structure such as bridge
and/or temple. The connections may be on opposite edges of
the lens at the horizontal center line, or may be above the
horizontal center line and above the useful field of vision.
For classification here the complete spectacle combination
must be claimed. That is the claims must include the bridge,
lenses and temples. For the combination of the temple and
the lens see subclasses 111+. For the combination of the
bridge and one or both lenses see subclasses 124+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 65+ for pince-nez-type spectacles.
subclasses 103+ for brace arm or semirimless mountings.
Subclass:
111
This subclass is indented under subclass 41. Subject matter
including structure secured to the outer ends of the lenses
or their frames and bearing upon the ears or sides of the
user's head for maintaining the spectacle in desired position
on the user.
(1) Note. The above noted temples are made from metal or
from a plastic, and may be straight or provided with a hook
and bend at their free ends.
(2) Note. This subclass provides for the combination of the
temple and the rim or lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 51+ for temples with ornamentation.
66 for pince-nez glasses with single temple.
89 and 93, for rim-type mountings with a brace arm temple
support.
SEE OR SEARCH CLASS:
381, Electrical Audio Signal Processing Systems and Devices,
subclass 327 for temple-pieces with concealed hearing-aids.
Subclass:
112
This subclass is indented under subclass 111. Subject matter
wherein a resilient clip or clasp is integral with or
otherwise attached to a temple piece for securing eyeglasses
to an article of wearing apparel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 155+ for spectacles with support or holders
generally.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., subclasses 455+ for
clasps generally.
Subclass:
113
This subclass is indented under subclass 111. Subject matter
wherein the temples are biased by springs or by elastic metal
members in addition to the usual temple structure either to
yieldingly resist outward movement of the temple, or to
engage the head of the wearer with yieldable pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 for resilient or flexible temples.
subclasses 150+ for connectors with resilient parts.
SEE OR SEARCH CLASS:
267, Spring Devices, for spring structures generally.
Subclass:
114
This subclass is indented under subclass 111. Subject matter
wherein the temples are flexible throughout or are provided
with flexible portions to yieldingly engage the side of the
head or the ear of the wearer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
113 for spring biased temples.
Subclass:
115
This subclass is indented under subclass 111. Subject matter
wherein the temple can selectively be used as a right or left
member in connection with the frame, or wherein the temple
may be rotated about its straight portion as an axis, or
wherein the temple may be swung to opposite sides of the
frame.
(1) Note. Included here are temples with pivots permitting
the temples to swivel on the front frame part so that when
folded one of the temples lies in front and the other temple
behind the lenses.
SEE OR SEARCH CLASS:
403, Joints and Connections, subclasses 52+ for articulated
joints in general.
Subclass:
116
This subclass is indented under subclass 111. Subject matter
wherein the temple is attached to the remaining spectacle
structure for ready attachment or removal therefrom as by a
hook or ring, or by a snapping or pressing action as distinct
from the usual screw attachment; or wherein the greater part
of the temple may be readily attached or removed from the
remaining part which is more permanently attached to the
other spectacle structure.
Subclass:
117
This subclass is indented under subclass 111. Subject matter
wherein the temple is made from plastic or composition
material and is reinforced by a metallic core extending
throughout or through the major part of its length.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117 for methods of making temples.
129 for reinforced bridges.
Subclass:
118
This subclass is indented under subclass 111. Subject matter
wherein two telescopically arranged temple sections are
selectively adjustable together with means for holding the
sections in relative longitudinally adjusted positions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
113 for spring-biased extensible temples.
119 for two part temples generally.
227 for adjustable temples in trial frames.
SEE OR SEARCH CLASS:
403, Joints and Connections, subclasses 83+ for articulated
connections lockable at a fixed position in general,
particularly subclasses 109.1+ for such connections between
telescoping members.
Subclass:
119
This subclass is indented under subclass 111. Subject matter
wherein the temple is composed of two end to end
interengaging parts securely held against disconnection.
(1) Note. The above noted temples may comprise combine
metallic and nonmetallic parts or may be formed of plastic
material only. Often one part constitutes the ear piece, and
the other the straight member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
118 for extensible temples.
SEE OR SEARCH CLASS:
381, Electrical Audio Signal Processing Systems and Devices,
subclasses 312+ for hearing-aid temple members consisting
of a rear portion, a forward portion and an extension
member.
403, Joints and Connections, appropriate subclasses for
joints and connections of general application.
Subclass:
120
This subclass is indented under subclass 111. Subject matter
wherein the temples are inclined with respect to the plane of
the lenses, thereby positioning the lens frame or the lenses
at an obtuse angle to the temples when rearwardly extended.
SEE OR SEARCH THIS CLASS, SUBCLASS:
115 for reversible or axially rotatable temples.
Subclass:
121
This subclass is indented under subclass 111. Subject matter
wherein the temple includes a connection such as a hinge
which connects the temple to the lens or frame.
(1) Note. This connector may comprise spring loaded hinges
or angularly and lengthwise adjustable hinges. Spectacle
hinges are classifiable, per se, in Class 16, Miscellaneous
Hardware, subclass 228, and Class 403, Joints and
Connections, subclasses 52+, even when the claim indicates
the hinge is to be used with or in spectacles. However, the
recitation of specific temple features in combination with
the hinge is sufficient for classification in this subclass
121.
SEE OR SEARCH THIS CLASS, SUBCLASS:
89 and 103+, for brace-arm-type temple connections.
99 and 100, for coincident and spaced rim clamp and pivot
temple hinges respectively.
153 for connectors with hinges.
SEE OR SEARCH CLASS:
2, Apparel, subclasses 448+ for hinges in goggles.
16, Miscellaneous Hardware, subclass 228 for related
hinge-structure, per se. See (1) Note above.
403, Joints and Connections, subclasses 52+ for related
hinged rod joints. See also (1) Note above.
Subclass:
122
This subclass is indented under subclass 111. Subject matter
wherein the earpiece of the temple is covered with
nonmetallic material to prevent irritating the skin of a
wearer.
(1) Note. The above noted covering may be produced by
dipping the temple core in an appropriate solution or by
providing a flexible nonmetallic cover around the earpiece.
Subclass:
123
This subclass is indented under subclass 111. Subject matter
wherein the temples are provided with slidable or fixed
attachments which contact the wearer's head or ear to hold
the spectacles firmly in place.
(1) Note. The above noted temple attachments may comprise
cushions, pads, springs or suction cups.
SEE OR SEARCH THIS CLASS, SUBCLASS:
122 for temples with skin protecting covers.
Subclass:
124
This subclass is indented under subclass 41. Subject matter
limited to structure which interconnects the rimmed or
rimless lenses of spectacles and extends across the nose of a
user.
(1) Note. The subject matter here does not include
resilient bridges as used in pince-nez mountings. See
subclasses 64 and 65+ above for such subject matter. This
subclass provides for the combination of the bridge and the
rim or lens, or the bridge with both rims or both lenses
unless provided for above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 65+ for bridges in pince-nez-type glasses, and
especially subclasses 65 and 67.
227 for bridges in trial frames.
Subclass:
125
This subclass is indented under subclass 124. Subject matter
wherein the bridge is in the shape of a cross bar generally
extending from the upper edge of one lens holding means to
the upper edge of the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
60 for spectacles with lens suspension bars.
68 for pince-nez glasses with resilient brace-type bridge.
subclasses 103+ for brace-arm type mountings.
227 for brow bar bridges in trial frames.
Subclass:
126
This subclass is indented under subclass 124. Subject matter
wherein the bridge joining the lens holding members is made
from resilient metal or includes flexible portions.
(1) Note. The above modification includes coil springs
interposed between the lenses or lens mountings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
65 for pince-nez glasses with flexible bridges.
156 for head-band type spectacles.
Subclass:
127
This subclass is indented under subclass 126. Subject matter
wherein the bridge connecting the lens holding rims is formed
of a plurality of flexible hollow ball or link-chain
members.
(1) Note. These bridges may be readily removable from the
lens rims, and may be adjustable to produce the required
distance between the lenses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 140+ for connectors.
SEE OR SEARCH CLASS:
2, Apparel, subclasses 445+ for ball or chain type bridges
in goggles.
Subclass:
128
This subclass is indented under subclass 124. Subject matter
wherein the bridge is adjustable as to pupillary distance
between the lenses, and/or to the facial characteristics of
the wearer.
(1) Note. The bridges may comprise a tubular member and a
second member selectively insertable therein, or the bridges
may be deformable in order to position the lenses properly
before the eyes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 and 65+, for adjustable bridges in pince-nez glasses.
subclasses 126+ for flexible bridges.
227 for bridges in trial frames.
Subclass:
129
This subclass is indented under subclass 124. Subject matter
wherein the bridge has a reinforcing metal core embedded
inside, or disposed on the inner or outer face of the
bridge.
(1) Note. The reinforcement may be in the form of a
straight piece of wire or may be curved to conform to the
curve of the bridge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117 for reinforced temples.
Subclass:
130
This subclass is indented under subclass 124. Subject matter
wherein the usual bridge is supplemented by an auxiliary
universally adaptable nose engaging attachment.
(1) Note. The above attachment may be in the form of a
brace, a clip or an auxiliary nosepiece.
Subclass:
131
This subclass is indented under subclass 124. Subject matter
wherein the bridge is integrally connected with a nose grip
or guard.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 for continuous rim mountings with nose guards or pads
integral with the frame.
Subclass:
132
This subclass is indented under subclass 124. Subject matter
including significant nose grip, nose guard, pad or cushion
structure with a bridge or wherein a significant relationship
exists between this structure and the bridge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
131 for nose grips or guards integral with the bridge.
subclasses 136+ for nose pads or cushions.
Subclass:
133
This subclass is indented under subclass 124. Subject matter
wherein the bridge has lens or lens-rim supporting means
laterally extending from the ends of the bridge.
(1) Note. In the embodiment here the bridge may be
detachable from the lens supports, or may be interconnected
with supports having ball-sockets, segmental attaching plates
or spring arms.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 140+ for connectors joining a bridge to the lens
or rim.
SEE OR SEARCH CLASS:
403, Joints and Connections, appropriate subclasses for
joints and connections generally, especially subclasses 52+
for articulated connections.
Subclass:
134
This subclass is indented under subclass 133. Subject matter
wherein the bridge and lens straps are made of an integral
piece of metal, or wherein the ends of the bridge and the
lens straps are soldered or welded together.
Subclass:
135
This subclass is indented under subclass 133. Subject matter
wherein the bridge has lens clamping members which usually
secure the lenses without screw fasteners and lens
perforations.
(1) Note. The above bridge-clamps may use a cementitious
medium to secure the lens in the clamping member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
144 for lens straps with cementing or fusing.
149 for lens straps having projections to engage the lens.
152 for lens straps with clamping arms.
Subclass:
136
This subclass is indented under subclass 41. Subject matter
including pads or cushions which rest against the nose of the
wearer and thereby prevent contact between the pad-supports
and the nose.
(1) Note. The above noted pads or cushions may be integral
with the bridge or lens rims or may be carried on the nose
grip arms.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 78+ for nose pads in pince-nez-type glasses, or
intended for use with pince-nez glasses.
132 for spectacle bridges including nose pads or cushions.
Subclass:
137
This subclass is indented under subclass 136. Subject matter
wherein the nose pads or cushions are movably mounted to have
proper play or rocking movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88 for continuous rim mountings with adjustable nose pads.
subclasses 126+ and 128, for flexible and adjustable
bridges respectively.
148 for adjustable strap-type connectors.
Subclass:
138
This subclass is indented under subclass 136. Subject matter
wherein the nose pad may be readily attached or detached from
its support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
80 for detachable nose pads in pince-nez glasses.
88 for continuous rim mountings with detachable nose pads.
Subclass:
139
This subclass is indented under subclass 136. Subject matter
wherein the nose pads and/or its support has a covering
tightly adherent thereto or a coating, which may be
relatively noncorrosive.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117 for temples with covered cores or rods.
Subclass:
140
This subclass is indented under subclass 41. Subject matter
for joining parts of spectacles or eyeglasses together such
as the bridge to the lens or rim, the nosepiece to the rim or
lens, or the temple to the rim or lens.
(1) Note. This subject matter is restricted to the
connector or the connector with conventional spectacle parts
broadly claimed. Where details of other spectacle parts are
recited classification is in the subclasses above; however, a
lens claimed broadly or in detail together with connectors or
mountings is classified here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 133+ for bridges with connectors to the nose
grips in pince-nez glasses.
SEE OR SEARCH CLASS:
285, Pipe Joints or Couplings, for pipe couplings generally.
403, Joints and Connections, appropriate subclasses for
joints and connections in general.
411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or
Locked-Threaded Fastener, appropriate subclasses for various
fasteners of general utility.
Subclass:
141
This subclass is indented under subclass 140. Subject matter
wherein screw or bolt-locking means are provided to prevent
loosening of the connecting screw or bolt.
(1) Note. The subject matter classified here may comprise
conical nuts, springs, washers, and fusible or other locking
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121 for temple with connections or mountings.
SEE OR SEARCH CLASS:
70, Locks, subclasses 229+ for bolt, nut stud, stud-cap,
and subclass 230 for such elements stationary locked.
Subclass:
142
This subclass is indented under subclass 140. Subject matter
wherein the lens securing device comprised a strap with
spaced ears or arms for engaging the lens therebetween.
(1) Note. The above noted lens-securing devices are usually
provided in rimless-type spectacles and pince-nez glasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 and 65+, for pince-nez-type eyeglasses.
110 for rimless lens-type mountings.
Subclass:
143
This subclass is indented under subclass 142. Subject matter
in which the straps are equipped with reinforcing braces,
supplemental lens gripping ears or rigid pins to securely
embrace or clamp the lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70 for bridges with nose guards and connectors in pince-nez
glasses.
Subclass:
144
This subclass is indented under subclass 142. Subject matter
wherein the strap and the lens are securely locked in
assembled relation by the application of cement, solder or
any other suitable bonding material between lens and
strap-members.
(1) Note. The above noted strap and lens connecting means
may be used to secure the bridge strap or the temple strap to
the lenses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 65+ and 110, for pince-nez-type mountings and
rimless-type spectacles respectively.
SEE OR SEARCH CLASS:
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
especially subclasses 60-303 and 349 through 583.91 for
surface bonding generally.
Subclass:
145
This subclass is indented under subclass 142. Subject matter
wherein resilient cushioning material is provided between the
strap members and the lens and around the connecting screw or
bolt.
(1) Note. The cushioning material here may be made of
rubber, cardboard, fiber or plastic.
SEE OR SEARCH THIS CLASS, SUBCLASS:
151 for strap connectors with springs between the lens and
the strap.
Subclass:
146
Subject matter under suclass 145 wherein the cushioning
material constitutes a preformed bushing or sleeve which is
pressed into the fastening hole of a lens or into the screw
holes in the strap arms to prevent any play between the
mounting and the lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for rimless lens-type mountings.
SEE OR SEARCH CLASS:
411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or
Locked-Threaded Fastener, subclasses 531+ for washers of
general utility.
Subclass:
147
This subclass is indented under subclass 142. Subject matter
wherein strap arms and screw heads are provided with
serrations for interlocking engagement to prevent loosening
of the interlocked members.
Subclass:
148
This subclass is indented under subclass 142. Subject matter
wherein the lens strap connectors are adjustable to permit
changing the position of the lens vertically or horizontally
with reference to the eye, or to permit insertion of lenses
of different shape or dimensions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69 for pince-nez-type mountings in which the lens and nose
guard pivot on the bridge.
128 for adjustable bridges.
153 for connectors with particular hinges.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., subclass 265 for
strap-end-attaching devices generally.
Subclass:
149
This subclass is indented under subclass 142. Subject matter
including a stud or projection on the strap or lens engaging
in a slot recess or indentation in the other.
(1) Note. Parts of the above noted mounting strap may
engage with a plurality of slots arranged in the lens at
angle to each other, or the strap may engage a lens-slot of
varying width for securing the lens.
Subclass:
150
This subclass is indented under subclass 142. Subject matter
including clamps or brackets for yieldably attaching lenses
to ophthalmic mountings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for bridges with clamping members.
106 for screwless-type lens connections in semirimless
mountings.
Subclass:
151
This subclass is indented under subclass 150. Subject matter
wherein resilient metal elements, such as leaf springs, are
interposed between the strap member and the adjacent edge of
the lens to maintain the connection between the lens and the
strap flexibly but firmly in proper relation.
(1) Note. These springs are usually provided in
rimless-type spectacles.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for rimless lens-type mountings.
subclasses 145+ for strap connectors with a cushion around
the lens screw or bolt.
SEE OR SEARCH CLASS:
267, Spring Devices, for spring structures generally.
Subclass:
152
This subclass is indented under subclass 142. Subject matter
wherein strap-type lens connectors comprise metal clamps for
gripping the surface of a rimless lens without employment of
the usual fastening screw.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 103+ for semirim-type mountings.
110 for rimless lens-type mountings.
149 for strap-type connectors with interengaging
projections and recesses.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., subclass 265 for
strap-end-attaching devices generally.
Subclass:
153
This subclass is indented under subclass 140. Subject matter
wherein significant hinge details or relationships are
claimed, such as the connector between a plastic temple and
eyeglass rim comprising a metallic hinge member anchored in a
slot or groove of the temple and/or the rim.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121 for temples with connectors or straps.
SEE OR SEARCH CLASS:
16, Miscellaneous Hardware, subclass 228 for eyeglass hinge
structure, per se.
Subclass:
154
This subclass is indented under subclass 41. Subject matter
including linings for interposition between the edge of a
lens and the rim of a frame or for application around lenses
in rimless spectacles or eyeglasses; also included here are
rims placed around the periphery of lenses to position the
axes of cylindrical or prismatic lenses properly.
(1) Note. The above noted linings or rims may be made from
rubber resilient metal or glass and may be transparent or
colored.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 51+ for spectacles with ornamentation.
86 for spectacles with lens retaining or locking means.
102 for spectacles with combined metal and plastic rims.
Subclass:
155
This subclass is indented under subclass 41. Subject matter
including structure in addition to the spectacle or eyeglass
structure for supporting the spectacles or eyeglasses during
use, or out of vision position.
(1) Note. For classification here the spectacles must be at
least broadly included in the claim; or the support if
claimed alone must be peculiarly adapted for holding
spectacle or eyeglasses. Since a basic function of the
spectacles is to support the lenses on the user, it is
emphasized that the supports here classified are something in
addition to the normal spectacle frames as classified above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
43 for floating-type spectacles,
57 for spectacles with auxiliary lens attachment.
66 for pince-nez glasses with ear chains.
112 for temples with a pocket clip or clasp.
227 for trial frames.
SEE OR SEARCH CLASS:
206, Special Receptacle or Package, subclass .5 for
spectacle cases.
248, Supports, subclasses 200+ for brackets generally.
Subclass:
156
This subclass is indented under subclass 155. Subject matter
wherein spectacles are without the usual temples but comprise
a strap or chain which embraces the head of a wearer to
support and retain the glasses without irritating the nose or
ears.
(1) Note. The above straps or chains carry usually means
for adjusting the glasses manually, e.g., up., down, or
farther apart for the correct pupillar distance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
157 for neck retainers.
227 for trial frame structures.
SEE OR SEARCH CLASS:
2, Apparel, subclass 452 for goggles which often include
similar supporting structure.
Subclass:
157
This subclass is indented under subclass 155. Subject matter
wherein spectacles have a holder or band usually connected to
the temples and encircling the head or neck of a wearer to
retain and support the spectacles when removed from their
operative position.
(1) Note. The above holders are usually adjustable
longitudinally of the temples and are removably secured in a
selected poisition.
SEE OR SEARCH CLASS:
381, Electrical Audio Signal Processing Systems and Devices,
subclasses 330+ for supports for hearing aid devices.
Subclass:
158
This subclass is indented under subclass 41. Subject matter
wherein the spectacles or eyeglasses are combined with
additional structure, which may or may not be optical, and
not provided for elsewhere.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 44+ for spectacles with anti-glare or shading.
50 for spectacles with rear-view reflectors.
subclasses 51+ for spectacles with decoration.
155 for spectacles with supports or holders.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
subclasses 409+, 481, and 816 for telescopes and magnifiers
with spectacle-type mounting.
362, Illumination, subclasses 103+ for combined light and
spectacle structure, and for body attached light supports.
381, Electrical Audio Signal Processing Systems and Devices,
subclass 327 for eyeglass hearing aid units.
607, Surgery: Light, Thermal, and Electrical Application,
subclasses 139+ for spectacles with structure making
electrical applications to the head.
Subclass:
159
This subclass is indented under subclass 41. Subject matter
is limited to lenses with specific optical characteristics
for use in spectacles or eyeglasses, said lenses having
surfaces of spherical, cylindrical or toric curvatures for
aiding vision or for correcting focal errors of the eye.
(1) Note. The subject matter here is distinct from and does
not include multiple component or compound lens systems
designed for example for taking and exhibiting pictures or
for use in binoculars, telescopes, and microscopes. See
Class 359, Optics: Systems (Including Communication) and
Elements, subclasses 362+ and 642+ for this subject matter
generally.
(2) Note. The indented subclass 177 includes processes of
making ophthalmic lenses as defined above and methods of
uniting optical elements to form multifocal lenses wherein
steps of grinding or finishing subsequent to uniting are
included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 41+ for spectacles including lenses as above
defined.
SEE OR SEARCH CLASS:
2, Apparel, subclasses 426+ for goggles; and subclasses 12+
for eye shades.
359, Optics: Systems (Including Communication) and Elements,
subclasses 362+ for compound lens systems generally. See
also (1) Note above.
Subclass:
160
This subclass is indented under subclass 159. Subject matter
wherein the lenses are peculiarly adapted to be placed
directly in contact with the eyeball and to move with the
eyeball.
(1) Note. The contact lens may comprise ventilating or
lubricating channels or ducts to obtain free circulation of
lacrimal fluid. The subject matter here may be a compound
lens system in which one element is a contact lens worn on
the eye and the other element is mounted in front of the eye
in the manner of the conventional spectacle lens. The
contact lens may comprise a skirt conforming to the
conjunctival sac of the eye, said skirt carrying a lens
disposed in front of but in spaced relation to the cornea.
SEE OR SEARCH THIS CLASS, SUBCLASS:
247 for methods of fitting contact lenses and instruments
for such use.
Subclass:
161
This subclass is indented under subclass 160. Subject matter
wherein the contact lens comprises two zones of different
focal length, one zone to correct the distance vision and
another zone to correct the reading vision.
SEE OR SEARCH THIS CLASS, SUBCLASS:
168 for multifocal lenses generally.
Subclass:
162
This subclass is indented under subclass 160. Subject matter
wherein the contact lens, or a portion thereof is colored to
absorb part of the visible spectrum or to change the color of
the iris in the eye.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 163+ for lenses generally with light filtering
means.
Subclass:
163
This subclass is indented under subclass 159. Subject matter
wherein the lenses have the property of absorption of rays in
portions of the visible or invisible spectrum, or are
combined with additional structure having this property.
(1) Note. For classification here an ophthalmic lens must
be included in the claims specifically or broadly if the
disclosure relates to such a lens. Light filters, per se,
which may be used with spectacle lenses are classified in
Class 359, Optics: Systems (Including Communication) and
Elements, subclasses 885+. These lenses may be polarizing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44 for spectacles with antiglare or shading.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
subclasses 483+ for light polarizers and subclasses 885+
for optical filters. See also (1) Note above.
501, Compositions: Ceramic, subclasses 60+ for lead
containing glass compositions.
Subclass:
164
This subclass is indented under subclass 163. Subject matter
wherein multifocal lenses absorb certain portions of rays in
the visible or invisible spectrum, or are combined with
additional structure having such an absorption property.
SEE OR SEARCH THIS CLASS, SUBCLASS:
168 for multifocal lenses generally.
Subclass:
165
This subclass is indented under subclass 163. Subject matter
wherein the lenses have vision areas of different light
abosorptive qualities which may differ in density and/or in
frequency (e.g., clear or slightly tinted central glass
portions and deeply colored surrounding areas).
SEE OR SEARCH THIS CLASS, SUBCLASS:
177 for methods of superposing a clear glass-disk and a
glass-disk having its color graduating in strength.
Subclass:
166
This subclass is indented under subclass 159. Subject matter
wherein one or both surfaces of a lens are covered with a
layer or layers and impact resisting, transparent and
hardened material; or wherein the lens comprises a pair of
glass elements and an intermediate resilient reinforcing
adhesive securing these elements together.
Subclass:
167
This subclass is indented under subclass 159. Subject matter
wherein the lens is specially adapted to use after the
operation for cataract and corrects by being very powerful.
(1) Note. The lens is usually composite comprising a double
convex and a concavo-convex lens secured together, or the
lens may comprise a lenticular support or border portion in
which a strong vision lens is mounted. The above lens may be
unifocal or may comprise lens elements of different
refractive indices as to provide a long vision and a reading
section, the diopter range usually being between 10 and 18.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160 for cateract-correcting combinations of contact lenses
and spectacle glasses.
Subclass:
168
This subclass is indented under subclass 159. Subject matter
wherein the ophthalmic lens has at least two vision fields of
different focal strength.
(1) Note. The different focal strength may be produced by
using material of different refractive indices or different
curvatures.
SEE OR SEARCH THIS CLASS, SUBCLASS:
161 for multifocal eye contact-type lenses.
164 for multifocal lenses with light filtering.
Subclass:
169
This subclass is indented under subclass 168. Subject matter
wherein the multifocal lens has areas gradually changing in
dioptric power.
(1) Note. The lens may have countersink and a segment with
different indices of refraction fused therein, or may be
formed from one piece or material by providing a continuously
varying radius of curvature.
Subclass:
170
This subclass is indented under subclass 168. Subject matter
wherein one of the multifocal lens elements has a specific
prismatic correction whose prism base is located relative to
the optical center of the distance and/or intermediate vision
lens sections to give the desired correction.
(1) Note. The lens section with prismatic correction may be
in the form of a segment fused into a lens countersink or the
prismatic correction may be formed by grinding a desired area
of a multifocal lens made of one piece of material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
175 for prismatic-type ophthalmic lenses generally.
Subclass:
171
This subclass is indented under subclass 168. Subject matter
wherein multifocal lenses have portions of three or more
focal powers respectively, for example, for near,
intermediate and far vision.
(1) Note. The above noted lenses may have countersinks and
segments of different refractive powers fused therein, or the
lenses may be formed of one piece of glass and by grinding
away the near vision and intermediate vision portions. The
countersinks and segments as well as the ground-away lens
portions in the one piece lenses may be of different
dimensions and shapes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
172 for multifocal lenses with long vision and reading
sections having joined lens elements, and 168 for such lenses
made from a single piece of glass.
Subclass:
172
This subclass is indented under subclass 168. Subject matter
wherein multiple lens elements of different refractive
indices have their adjacent surfaces joined together to
provide a unitary multifocal lens that has, for example, a
long vision and a reading section.
(1) Note. The modification here comprises for example a
major glass member having a shallow countersink and a
relatively thin segment fused therein, a thin reading segment
fused to a major glass surface, or the lens members may be
held in place by usual frame pieces. The countersinks and
segments may be of different dimensions and shapes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
168 for multifocal lenses may from a single piece of glass;
and 171, for multiple element lenses with three or more
foci.
Subclass:
173
This subclass is indented under subclass 159. Subject matter
wherein one surface of a lens is shaped so as to give a
prescribed image-size correction (magnification) without
refractive power.
(1) Note. The modification here may comprise the addition
of refractive power by suitably grinding the second surface
of the lens. This subclass also provides for two lenses (one
for each eye), one or both or which may be within the scope
of the above definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160 for combinations of contact lenses and spectacle
glasses.
Subclass:
174
This subclass is indented under subclass 159. Subject matter
wherein the edge of the lens is polished, beveled or
otherwise modified for protecting or reinforcing the lens for
example.
(1) Note. The modification here is integral with the lens.
Subclass 154 above provides for linings and rims separate
from the lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
154 for lens linings and rims. See also (1) Note above.
166 for lenses with protective layers.
Subclass:
175
This subclass is indented under subclass 159. Subject matter
wherein the lens is formed with a wedge or tapered cross
section to deflect, for example, the light path from the
object to the eye, or to correct strabismus or eye
deviation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
170 for multifocal lenses with prismatic segments.
203 for eye exercising and training devices.
Subclass:
176
This subclass is indented under subclass 159. Subject matter
wherein one of the lens surfaces has a spherical curvature
providing dioptrics or lens powers for correction of focal
errors of the eye and/or wherein one lens curvature may be in
cylindrical or toric form to compensate for astigmatic errors
of the eye.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 200+ for eye testing instruments with
cylindrical lens systems.
Subclass:
177
This subclass is indented under subclass 159. Subject matter
including processes of making ophthalmic lenses as there
defined and not otherwise classifiable.
(1) Note. Class 451 provides for grinding or polishing a
lens; Class 65 provides for fusion bonding of glass lenses;
while Class 156 provides for adhesive bonding of such lenses.
The patents classified in this subclass 177 usually claim
combinations of these methods, which are beyond the scope of
any one of the above classes. See also the reference to
these classes below.
(2) Note. This subclass includes processes for forming
contact lenses adapted to be in contact with the eyeball, as
opposed to the fitting of contact lenses to the eye which are
classified in subclass 40 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
247 for contact lens fitting. See also (2) Note above.
SEE OR SEARCH CLASS:
65, Glass Manufacturing, subclasses 36+ for fusion bonding
of glass.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclasses 99+ for optically transparent glass sandwich
making.
427, Coating Processes, subclasses 162+ for coating
processes, per se, wherein the product is an electrical
element.
451, Abrading, subclasses 42+ for a lens abrading process
and subclass 57 for such a process involving distinct
abrading areas or steps.
501, Compositions: Ceramic, subclasses 11+ for glass
composition; and especially subclasses 40+ for lead
containing glass.
Subclass:
178
This subclass is indented under subclass 41. Subject matter
including processes of making spectacles and eyeglasses,
securing an eyeglass lens to its support, or of assembling
lenses in spectacle frames.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42 for lens-repair devices.
177 for methods of making ophthalmic lenses.
246 for methods of operating or using eye testing
instruments.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 20 for machines and processes
for making spectacle frames, temples and bridges.
Subclass:
200
EYE EXAMINING OR TESTING INSTRUMENT:
This subclass is indented under the class definition. Subject
matter including ophthalmic instruments, optical systems and
methods for testing vision, for optical examination and
diagnosis (and treatment) with respect to disease and
irregularities of the eye, and for ascertaining lenses for
correcting errors of refraction or other defects of the eye.
(1) Note. The instruments may comprise supporting bases
corneal microscopes, slit lamps and other eye illuminating
means, adjustable head or chin resting devices, and
illuminable targets. The instruments here are concerned with
for example the measuring and testing of the vision
characteristics of the eye for the purpose of correcting any
determined visual defects. These instruments are associated
with the visual path of the eye either for viewing the
interior of the eye through the visual path or by utilizing
the visual path during the measurement or test. Instruments
especially for examining or diagnosing the eye which do not
involve its visual path are classified here, if they are
essentially optical. However, instruments for treating the
eye, or for examining the eye when not optical and not
associated with the visual path are classifiable elsewhere.
For example, Class 600, Surgery, subclasses 398+ for
Tonometry, Class 351, subclasses 41+ for spectacles and
eyeglasses and Class 601, Surgery: Kinesitherapy subclass 37
for eye exercising devices. Multipurpose instruments which
measure or test within the scope of this subclass, but also
perform some nonoptical eye test not associated with the
visual path or perform some treatment of the eye are
classifiable here, especially in the indented subclass 203.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 41+ for spectacles and eyeglasses.
subclasses 205+ for objective eye testing (e.g.,
ophthalmoscope and retinoscopes).
subclasses 211+ for projected target image.
subclasses 222+ for subjective eye testing.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
subclasses 368+ for microscopes, generally.
600, Surgery, subclasses 300+ for diagnostic instruments
generally.
606, Surgery, subclass 204.25 for eye exercising devices
which make physical contact with the eye. See also (1) Note
above.
Subclass:
201
For fusion and space perception testing (e.g., stereoscopic
vision):
This subclass is indented under subclass 200. Subject matter
including instruments used for testing simultaneous binocular
vision for determining space perception and determining the
condition of prismatic imbalance, both vertically and
laterally, of a pair of eyes.
(1) Note. The above instruments may polarize the light in
crossed planes coming from the different portions of a
target, or may present pairs of half stereograms to the
respective eyes, or may present a plurality of independently
movable targets so that the correct optical positions for
true image convergence or true stereopsis are obtained.
SEE OR SEARCH CLASS:
600, Surgery, subclasses 300+ for diagnostic apparatus.
Subclass:
202
Of abnormal muscular functioning:
This subclass is indented under subclass 201. Subject matter
relates to apparatus for detecting the state of extrinsic
ocular muscles and for determining the amount of imbalance or
insufficiency thereof.
(1) Note. Spaced apart target means in conjunction with
binocular polarizing viewers may be utilized in the above
apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
232 for subjective eye testing with light polarizing lens.
Subclass:
203
Eye exercising or training type:
This subclass is indented under subclass 200. Subject matter
including multipurpose instruments, which serve to examine
and test the eye to rectify defective vision, and which may
be used to subject the eyes to a controlled muscle strain
period or flashed illumintion for training and exercising
purposes.
(1) Note. The above instruments may comprise prismatic
lenses of adjustable power, stereoscopic devices, or movable
test objects for exercising ocular muscles.
Subclass:
204
For interpupillary distance measuring or lens positioning:
This subclass is indented under subclass 200. Subject matter
including instruments for ascertaining the accurate distance
between the pupils of a patient's eyes so that spectacle
frames and/or eyeglass lenses will be properly related to the
pupils.
(1) Note. Included here are instruments to accurately
determine the best size and vision field placement of
multifocal segments.
SEE OR SEARCH CLASS:
33, Geometrical Instruments, subclass 200 for spectacle
gauges.
Subclass:
205
Objective type:
This subclass is indented under subclass 200. Subject matter
including instruments for examining the eye of a patient
independently of the patient's perceptions of responses, for
example, by observing a light or image directed onto or into
the eye to diagnose the eye or to ascertain the power of
refraction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
245 for instrument support.
SEE OR SEARCH CLASS:
600, Surgery, subclasses 300+ for diagnostic instruments
generally.
Subclass:
206
Including eye photography:
This subclass is indented under subclass 205. Subject matter
includes still or motion-picture apparatus for photographing
the interior of the eye.
(1) Note. The above apparatus may comprise luminous eye
fixation objects and/or interconnected illumination and
shutter-actuating means.
SEE OR SEARCH CLASS:
352, Optics: Motion Pictures, for motion- picture
apparatus.
396, Photography, subclass 18 for an ocular camera.
Subclass:
207
Having spurious reflection blocking:
This subclass is indented under subclass 206. Subject matter
including means for blocking undesirable reflections from the
eye, or from elements in the optical path.
Subclass:
208
Having means to detect proper distance or alignment (i.e.,
eye to instrument):
This subclass is indented under subclass 206. Subject matter
including means for indicating when the photographing
instrument and the eye are at the proper alignment or
distance with respect to each other.
Subclass:
209
Including eye movement detection:
This subclass is indented under subclass 205. Subject matter
including means for indicating or recording eye movement.
Subclass:
210
Using photodetector:
This subclass is indented under subclass 209. Subject matter
where the indicating or recording means is a photosensitive
device.
Subclass:
211
Including projected target image:
This subclass is indented under subclass 205. Subject matter
wherein light rays or images of illuminated targets or
reticules are projected onto a selected plane in the eye or a
patient during examination.
(1) Note. The above noted targets may be used with
monocular or binocular testing instruments and the images may
be directed into the eye by mirrors or prisms which intersect
the line of vision.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for projected target in subjective testing.
Subclass:
212
For cornea curvature measurement:
This subclass is indented under subclass 211. Subject matter
wherein the projected target image is used for measuring the
curvature of the cornea.
SEE OR SEARCH THIS CLASS, SUBCLASS:
247 for methods of contact lens fitting.
Subclass:
213
Including light filter or absorber:
This subclass is indented under subclass 205. Subject matter
including a filter or absorber wherein a light beam directed
into a patient's eye is of a specific color or wave length,
or wherein the luminous intensity of the light is weakened to
a desired magnitude by appropriate absorbers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
233 for movable lens or filter selectively insertable in
optical path.
Subclass:
214
Including diaphragm of slit:
This subclass is indented under subclass 205. Subject matter
in which a movable diaphragm or narrow slit is provided
through which a strong light is passes into the eye being
tested.
(1) Note. The above instruments employ usually artificial
light, e.g., Neon light, and the diaphragm or slit is
adjustable to determine refraction deficiencies of the eye.
Subclass:
215
Including light polarizing means:
This subclass is indented under subclass 205. Subject matter
including a light polarizer wherein the light which is
directed into or emerges from the eye of a patient is
polarized to avoid reflexes and to obtain the greatest
possible intensity of illumination and image-clarity.
(1) Note. The above light polarizers may comprise two
adjustable light polarizing foils, or the foils may polarize
the light linearly so that their planes of oscillation are at
right angles to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
203 for eye-exercising devices with light polarizers.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
subclasses 483+ for polarizing devices generally.
Subclass:
216
Including lens selectively insertable in optical path:
This subclass is indented under subclass 205. Subject matter
wherein adjustably mounted test lens(es) are selectively
placed in front of the observed eye for measuring the
refraction of the eye so as to provide correcting lenses
therefor.
(1) Note. The lenses may be spherical, cylindrical or
prismatic, and may be insertable in monocular or binocular
test instruments, which may be portable or fixedly mounted in
a physicians's office.
SEE OR SEARCH THIS CLASS, SUBCLASS:
234 for subjective testing instruments wherein lenses or
filters are mounted on a rotatable disc.
Subclass:
217
On rotary disc:
This subclass is indented under subclass 216. Subject matter
wherein multiple test lenses are eccentrically mounted on
either a single rotary disc or a pair of rotary discs.
(1) Note. The lens discs in this generic subclass are used
in monocular or binocular test instruments which are usually
permanently mounted in the office of the oculist. Plural
superimposed discs used in the instrument are mounted for
rotation about a common axis so as to successively align the
test lenses with coaxial sight openings in the discs.
SEE OR SEARCH THIS CLASS, SUBCLASS:
234 for subjective testing instruments with the lenses
mounted on rotatable disc.
Subclass:
218
Hand held type:
This subclass is indented under subclass 217. Subject matter
includes test instruments with rotatable multiple lens discs
which are portable and held in hand during examination.
(1) Note. The above instruments may comprise an electrical
light source adjustable mounted inside the handle or battery
casing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
221 for illuminators in objective testing.
SEE OR SEARCH CLASS:
362, Illumination, appropriate subclasses.
Subclass:
219
With contact lens:
This subclass is indented under subclass 205. Subject matter
which includes a lens which makes contact with the eye.
(1) Note. The contact lens may include fluid which contacts
the eye.
Subclass:
220
Including reflectors with off-set surfaces:
This subclass is indented under subclass 205. Subject matter
wherein a light deflecting device, such as a mirror or
reflector has two reflecting surfaces, offset with respect to
each other, in order to provide a sight opening for the
oculist to view the eye.
(1) Note. The surfaces of the above deflecting device may
be angled relative to each other so that the reflected beams
cross or overlap each other as they enter the eye.
Subclass:
221
Including illuminator:
This subclass is indented under subclass 205. Subject matter
relating to devices including a light source for internal or
external illumination of the eye during examination and/or
photographing thereof.
(1) Note. Included here are light source devices for
controlled illumination of vision test charts used in the
practice of optometry, slit lamps with or without
fibre-optical image-transfer devices, and illuminators in the
form of a contact lens fitting over the scieral area of the
eye.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for subjective testing with target projection.
243 for illuminated charts and targets.
SEE OR SEARCH CLASS:
362, Illumination, appropriate subclasses for portable and
self-contained illuminators combined with other instruments
in general, for battery powered lamps; and for illumination
projectors.
Subclass:
222
Subjective type:
This subclass is indented under subclass 200. Subject matter
including instruments through which the patient views a test
object (target) or the test object so viewed, for detecting
various ocular characteristics or deficiencies of the patient
or for prescribing necessary corrections for the patient's
vision based on the patient's perceptions or responses.
(1) Note. The above instruments may be permanent or
nonportable installations in the office of an examining
physician, or may be portable and conveniently carried
units.
SEE OR SEARCH THIS CLASS, SUBCLASS:
239 including test chart or target.
244 for test instrument supports.
SEE OR SEARCH CLASS:
600, Surgery, subclasses 300+ for diagnostic instruments
generally.
Subclass:
223
Self examining type:
This subclass is indented under subclass 222. Subject matter
includes eye testing devices which may be operated by a
person testing his own eyes.
(1) Note. The device is usually inside a cabinet holding a
plurality of pairs of eyeglasses for displaying, selecting
and/or vending such glasses. Eyeglasses of varying strength
are brought successively into the line of vision of the
person desiring glasses until the spectacles best fitting the
person's eyes are determined.
Subclass:
224
Perimeter type:
This subclass is indented under subclass 222. Subject matter
including a surface usually illuminated from a light source
together with test targets movable along the inside face of
the surface, which targets are viewed by the patient
undergoing eye examination for determining fiel of vision.
(1) Note. The above instruments may comprise
electromagnetical recording devices which recieve impulses
from a photoeclectric cell.
Subclass:
225
With rotatable arm:
This subclass is indented under subclass 224. Subject matter
where the means for producing the test targets on the surface
is a rotatable arm.
Subclass:
226
With bowl type screen:
This subclass is indented under subclass 224. Subject matter
wherein the surface is shaped as a hollow hemispherical bowl
or cup carrying inside suitable test patterns or targets
which are viewed by the patient.
Subclass:
227
Including trial frames:
This subclass is indented under subclass 222. Subject matter
including frame structure for removably, adjustably and
selectively supporting test lenses before the patient's eyes
during examination, the structure being adjustable to the
features of the patient's head.
(1) Note. The adjustment to the patient's features may
include lateral and vertical adjustment, angular adjustment
between the temples and the center part of the frame, and
interpupilar distance. The test-lens support may include a
ring type holder which may be rotated and may be provided
with a graduated scale to ascertain the axial line and
position of a cylindrical or prismatic lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
216 including movable lens.
Subclass:
228
With multifocal lens:
This subclass is indented under subclass 227. Subject matter
including structure for selecting near and far vision
portions of multifocal lenses, demonstrating optical
characteristics of multifocal lens segments, and for properly
locating the segments relative to the basic lens and the eyes
of the patient.
Subclass:
229
With plural lens carrier:
This subclass is indented under subclass 227. Subject matter
including frame structure for selectively supporting a
plurality of different test lenses in series in separate
spaced apart relation, and usually having open-topped
ring-type holders.
(1) Note. The above test lens holders may comprise
graduated axis scales, and may be adjusted for pupiliary
distance and other facial requirements of different
individuals.
Subclass:
230
With individual lens holder:
This subclass is indented under subclass 227. Subject matter
including individual lens holders for single test lenses
which may be temporarily and interchangeably inserted into
trial or conventional eyeglass frames.
(1) Note. The above lens holders carry usually projecting
handles or calibrated dials which bear date indentifying each
lens as by sphere, diopter and axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
154 for lens rims generally.
Subclass:
231
Removably attachable to eyeglass frame:
This subclass is indented under subclass 227. Subject matter
where the frame structure is removably attachable to an
eyeglass frame.
Subclass:
232
With light polarizing lens:
This subclass is indented under subclass 222. Subject matter
wherein adjustable light polarizing means are positioned in
the light beam of a projected test-image and/or before each
eye of a patient viewing a test target.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49 for antiglare spectacles with polarizing lenses.
203 for eye exercising devices with light polarizers.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
subclasses 483+ for polarizing devices generally.
Subclass:
233
Lens or filter selectively insertable in optical path:
This subclass is indented under subclass 222. Subject matter
wherein the instrument includes selective lenses or spectacle
frames carrying lenses of different power movable into and
out of eye testing position until errors of refraction are
determined, proper lenses have been found and/or corrected
vision is obtained.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 216+ for movable lens selectively insertable in
optical path.
subclasses 227+ for trial frames.
Subclass:
234
Mounted on rotatable disc:
This subclass is indented under subclass 233. Subject matter
wherein the person undergoing eye examination views a test
object through test lenses mounted in a circle on one or
several rotatable discs, each lens having a different
spherical, cylindrical or light absorbing power.
(1) Note. The above eye testing instruments may comprise
illumination means functioning electrically in conjunction
with a timing and time indicating apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
205 for objective testing instruments having lenses mounted
on rotatable discs.
SEE OR SEARCH CLASS:
353, Optics: Image Projectors, for image projectors of
general utility.
Subclass:
235
Having plural disc carrier:
This subclass is indented under subclass 233. Subject matter
wherein two eye testing units, one for each eye, are
supported on a standard, each of the units comprising a
plurality of rotatable test lens discs, which are superposed
and mounted on or in the same housing or baseplate on a
common central axis.
Subclass:
236
Movable along optical axis:
This subclass is indented under subclass 233. Subject matter
wherein individual trial lenses or optical systems comprising
plural superimposed adjustable lenses are movable along the
optical axis before the eyes of a patient in a plane vertical
to the direction of sight.
(1) Note. The above lenses or optical systems may be in
monocular or binocular test instruments, and may comprise
sets of reflecting prisms intersecting the line of sight.
Subclass:
237
Including target image projection:
This subclass is indented under subclass 222. Subject matter
wherein a still projector casts one or more illuminated chart
or target images on a screen for use in vision testing.
(1) Note. Included here are two-dimensional and/or
stereoscopic reading-training projectors which are
successively fed sequential frames of intelligence on strips
or circular discs.
SEE OR SEARCH THIS CLASS, SUBCLASS:
211 for projected targets involved in objective eye
testing.
243 for illuminated test charts or targets generally.
Subclass:
238
Tachistoscope type:
Subject matter under suclass 237 wherein written material or
other target-subject matter us projected onto a screen or
shown on a panel for controlled short periods of time to test
the reading ability or visual acuity of an individual's
eyes.
(1) Note. Class 434, particularly subclasses 159+, 167+,
185 and 327+ in some respects are similar to this subclass,
these subclasses containing targets or reading charts and
viewing devices. In this Class 351 the devices are directed
as their primary purpose to testing the acuity of vision of
an individual with short, accurate and selective timing,
while in Class 434 the devices are dierected to the general
purpose of testing knowledge or instructing in
characteristics of article.
Subclass:
239
Including test chart or target:
This subclass is indented under subclass 222. Subject matter
including charts with movable or stationary patterns or
targets for either direct reading, or in relation with an
optical instrument for testing or otherwise determining
visual acuity or errors of refraction of the eye.
SEE OR SEARCH THIS CLASS, SUBCLASS:
211 for objective eye testing which involves projecting a
chart or target into the eye.
237 for target projection.
SEE OR SEARCH CLASS:
600, Surgery, subclasses 300+ for diagnostic instruments.
606, Surgery, subclass 204.25 for eye orthopedics.
Subclass:
240
Stereoscopic type:
This subclass is indented under subclass 239. Subject matter
comprising stereoscopic or depth perception target-charts,
such as used for testing muscle-imbalance and or depth
perception of the eye.
Subclass:
241
Astigmatism type:
This subclass is indented under subclass 239. Subject matter
comprising eye test charts having for example changeable
color lines or colored contour bands, to determine the axis
and amount of astigmatism and the required cylindrical lens
axis.
SEE OR SEARCH CLASS:
40, Card, Picture, or Sign Exhibiting, subclasses 446+ for
changeable exhibitors, and subclasses 541+ for illuminated
signs.
Subclass:
242
Chromaticity type:
This subclass is indented under subclass 239. Subject matter
relating to polychromatic charts or plates used in color
deficiency or color sensitivity test, the plates or charts
exposing to the viewer s:graphic representations of different
particular colors and/or varying intensity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for chart and/or target projection.
Subclass:
243
Illuminated:
This subclass is indented under subclass 239. Subject matter
including structure for illuminating the chart or target, or
for backlighting perforated or translucent symbols.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for target image projection.
SEE OR SEARCH CLASS:
40, Card, Picture, or Sign Exhibiting, subclass 541 for
illuminated signs.
362, Illumination, appropriate subclasses for light combined
with structure generally and for projectors.
Subclass:
244
Having support or cabinet:
This subclass is indented under subclass 239. Subject matter
wherein reading charts or test targets are supported by and
individually exhibited at a display window of a cabinet or
removably secured to a base board or handle.
(1) Note. The above noted chart supporting cabinets may be
foldable and portable and may comprise reflecting mirrors or
electrical illuminators.
SEE OR SEARCH THIS CLASS, SUBCLASS:
203 for eye exercising and training devices.
245 for eye-testing instrument supports generally.
SEE OR SEARCH CLASS:
248, Supports, subclasses 127+, for stands generally.
312, Supports: Cabinet Structure, for cabinet supports.
Subclass:
245
Support:
This subclass is indented under subclass 200. Subject matter
relates to adjustable stands or bases which support
ophthalmic diagnostic test instruments for test charts.
(1) Note. Included here are instrument supports with or
without test chart holders comprising adjustable head and
chin rests for the patient while under eye inspection or
treatment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 239+ for test charts or targets with supports.
SEE OR SEARCH CLASS:
248, Supports, subclass 121, 127 and 176.1+ for article
supporting stands and brackets.
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclass 93 for instrument supports with hydraulic or
fluid pressure means.
Subclass:
246
Methods of use:
This subclass is indented under subclass 200. Subject matter
including the methods of operating or utilizing the
instruments as defined in this subclass for the purpose of
examining or testing the eyes.
(1) Note. The subclass does not provide for methods of
making lenses except where fitting is involved as indicated
in the indented subclass. Methods of making spectacles or
lenses therefor are classified in subclass 177 unless
provided for elsewhere as indicated in the search notes
appended thereto. In general the original patents classified
here have only method claims. If claims are included to both
the testing instrument structure and the method of operating
the instrument, the classification is with the instrument in
the subclasses above, with a cross reference to these method
subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
203 for combined eye testing and exercising instruments.
223 for eye testing devices operated by the person himself
while selecting eyeglasses.
Subclass:
247
For contact lens fitting:
Subject matter under subclass limited to process for
measuring and determining the curvature of a patient's
eyeball so that the bearing surfaces of a contact lens may be
made to fit the eyeball accurately.
(1) Note. The above fitting processes may include
photographing the eye, projecting a silhouette of the contour
of a mold or cast, or otherwise making accurate eye
measurements to fit contact lenses of suitable shape and
characteristics to the eye. Included also here are methods
for fitting contact lenses by taking molds of the eye and
forming an eye fitting cast of the mold.
(2) Note. When modification of the contact lens such as
grinding, polishing or otherwise altering the shape of the
lens is done concurrently with and necessary to the fitting,
as opposed to the making of the preliminary blank,
classification is in this subclass. However, subclass 177
below provides for methods of making contact lenses with the
scope of its subclass definition where no fitting of the lens
is involved.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160 for eye contact lenses, per se.
177 for methods making contact lenses generally. (See (2)
Note above.)
178 for methods of making spectacles and eyeglasses
generally.
SEE OR SEARCH CLASS:
451, Abrading, subclass 42 for grinding or polishing
lenses.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000