U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
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Class 042
FIREARMS
Class Definition:
This class includes all the portable firearms, i.e., those
which are supported by hand when operated, such as shoulder
guns, pistols, toy firearms and cane guns, except the
automatic or explosion-operated firearms. This class also
has such firearms combined with cleaners, intrenching
devices, bayonets, and other cutters (including specifically
pistol-swords). The following devices are likewise found here
either, per se, or in combination with the firearm; ram rods,
gun-rests and some body supported arm rests.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
7, Compound Tools, subclass 158 for hand manipulable cutters
(including bayonets) combined with other tools.
15, Brushing, Scrubbing, and General Cleaning, subclass
104.05 for gun cleaners.
30, Cutlery, pertinent subclasses, for hand manipulable
cutters (including bayonets), per se, and subclasses 142+
for the combination of two or more cutters.
33, Geometrical Instruments, subclasses 233+ for gun
sights, per se, and gun and sight combinations where only so
much gun structure is included as is necessary to accommodate
the sight and subclass 244 for a gun sight cover.
60, Power Plants, subclasses 632+, for one shot explosion
actuated expansible chamber type motors.
81, Tools, subclass 3.05 and the notes thereto appended for
shell projectile or wad extractors.
86, Ammunition and Explosive-Charge Making.
89, Ordnance, for heavier mounted guns, subclass 14.1 for
all barrels with heat exchangers, and subclasses 125+ for
automatic or explosion-operated firearms.
102, Ammunition and Explosives, appropriate subclasses, for
gun projectiles, per se.
124, Mechanical Guns and Projectors, for mechanical
projectile throwing or impelling apparatus in which the
propelling agent is nonexplosive.
206, Special Receptacle or Package, subclass 317 for a
weapon container (e.g., gun case).
221, Article Dispensing, subclass 24 for article dispensers
shaped to simulate various figures and which may include
firearm simulations. Also, see the class definition of Class
221 for article dispensers in other classes related to
magazine feed in general.
222, Dispensing, subclass 79 for dispensers simulating
firearms, e.g., water pistols, and subclass 192 for
dispensers combined with firearms where only so much of the
firearm as is necessary to support or operate the dispenser
is claimed.
294, Handling: Hand and Hoist-Line Implements, subclasses
49+ for intrenching tools of the shovel type.
SUBCLASSES
Subclass:
1.01
INDICATORS:
This subclass is indented under the class definition. Devices
having means to convey information to one of the senses.
Subclass:
1.02
Magazine shot:
This subclass is indented under subclass 1.01. Devices
comprising a compartment which holds ammunition ready for
chambering and having means for indicating the presence or
absence of ammunition or for indicating the number of
ammunition rounds left or spent from the compartment.
Subclass:
1.03
Single shot, e.g., digital type:
This subclass is indented under subclass 1.01. Devices having
means for either indicating the total number of shots
discharged from the firearm or whether a projectile has been
fired.
Subclass:
1.04
Hammer position:
This subclass is indented under subclass 1.01. Devices having
means to designate the position of that part of the firing
mechanism of a gun that strikes the firing pin or cartridge
primer.
Subclass:
1.05
Chamber status:
This subclass is indented under subclass 1.01. Devices having
means to designate the presence or absence of ammunition in
that part of a gun in which the ammunition is placed for
firing.
Subclass:
1.06
WITH RECOIL REDUCER:
This subclass is indented under the class definition. Devices
having means to decrease the reaction of a gun after being
discharged.
(1) Note. Recoil, particularly as pertains to small
firearms, is popularly called "kick".
SEE OR SEARCH THIS CLASS, SUBCLASS:
74 for cushioned stocks.
Subclass:
1.07
WITH ADJUSTABLE HEAD SPACE:
This subclass is indented under the class definition. Devices
having adjustable means to compensate for the distance
between the face of the locked bolt or breech block of a
firearm and some specified point in the chamber.
(1) Note. With guns designed for rimless, bottlenecked
cartridges, head space is the space between the bolt face and
specified point on the shoulder of the chamber; with guns
using rimmed cartridges, the head space between the bolt face
and the ridge or abutment in the chamber against which the
rim rests; and with guns using rimless straight-case
cartridges, the space between the bolt face and the ridge or
point in the chamber where the mouth of the cartridge case
rests.
Subclass:
1.08
FOR DISCHARGING A STUNNING AGENT:
This subclass is indented under the class definition.
Firearms specifically designed to fire a projectile
containing a gas or other medium so as to render physical
insensibility to any one of the senses.
Subclass:
1.09
DISGUISED AS BODY ARTICLE:
This subclass is indented under the class definition.
Firearms concealable in such a manner as to appear as an
object normally worn, or carried by person, e.g., pen gun,
watch, etc.
Subclass:
1.11
BODY BORNE REMOTE OPERATED:
This subclass is indented under the class definition.
Firearms attachable to some part of the body and discharged
from or by another part of the body.
Subclass:
1.12
CATTLE SLAUGHTER TYPE:
This subclass is indented under the class definition.
Firearms specifically designed to discharged a projectile
solely for the purpose of the humane slaughter of animals.
Subclass:
1.13
TRIP, TRAP OR BURGLARY PREVENTION:
This subclass is indented under the class definition. Devices
including hidden means attached to a firearm device which can
discharge the firearm from a remote area when the hidden
means are disturbed.
Subclass:
1.14
UNDERWATER TYPE:
This subclass is indented under the class definition.
Firearms adapted to be used and/or discharge in subaqueous
conditions, e.g., spear guns, share cartridges, etc.
SEE OR SEARCH CLASS:
43, Fishing, Trapping, and Vermin Destroying, subclasses 6+
for fishing with harpoons and spears.
102, Ammunition and Explosives, subclass 399 for marine-type
projectiles.
124, Mechanical Guns and Projectors, appropriate subclass.
Subclass:
1.15
FLARE TYPE GUN:
This subclass is indented under the class definition.
Firearms particularly adapted to discharge a pyrotechnic
medium designed to produce a source or light.
Subclass:
1.16
BILLY CLUB TYPE:
This subclass is indented under the class definition.
Firearms disguised as a wooden club which would normally be
used by policeman.
Subclass:
2
Miscellaneous firearms adapted for loading at the breech.
The subclasses under this title, except those of the
spring-motor guns, and the grip-magazine pistols, are based
on the movements of the breechblock or barrel in opening the
breech. Features of magazine structure may be found in any
of the magazine subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
75 for frame and barrel fastenings for take-down purposes
only. Where the barrel must be separated from the frame for
the purpose of loading and unloading, the patent is in this
subclass (2).
Subclass:
5
Firearms in which a spring, which is wound up, is utilized to
furnish the power for opening the breech, usually by sliding
the breechblock rearward, ejecting the shell, reloading and
closing the breech. Usually one winding of the spring is
sufficient for a magazine full of cartridges.
Subclass:
6
Miscellaneous breech-loading magazine-guns not classifiable
in any of the other subclasses of magazine-guns.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 and 7.
Subclass:
7
The magazine is placed in the handle or grip of the pistol.
Usually the breech-block slides rearward or the barrel
forward to open the breech.
SEE OR SEARCH CLASS:
16, Miscellaneous Hardware, subclass 111.1 and the notes
thereto appended for handles which also serve as
receptacles.
89, Ordnance, subclasses 195+ for automatic guns of the
grip magazine type.
Subclass:
8
"Breakdown" guns in which the hinge is located at the
breech.
Subclass:
9
The breechblock turns about a central fixed axis, which is
perpendicular to the longitudinal axis of the barrel like a
faucet valve, to open and close the breech. The charge is
sometimes received in this block and there retained when
fired. In other cases the block closes the breech containing
the charge.
Subclass:
10
The barrel slides forward to open the breech.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 161 for automatic guns of this type.
Subclass:
11
Magazine-guns in which the barrel slides forward to open the
breech, this movement also operating to reload the gun from
the magazine.
Subclass:
12
The barrel, to open the breech, is made to swing to one
side.
Subclass:
13
The barrel, to open the breech, is made to swing to one side
on a pivot, or axis parallel to the length or axis of the
barrel.
Subclass:
14
The breechblock is made to slide in guides to open or close
the breech.
Subclass:
15
This subclass is indented under subclass 14. Firearms having
a chamber which is movable relative to the barrel and
surrounds or holds a cartridge or load in firing position,
and which may be integral with, connected to, or separate
from, the sliding breechblock.
(1) Note. This subclass also includes sectional chambers if
at least one section is movable relative to the barrel.
(2) Note. A magazine as distinguished from a chamber, does
not hold the cartridge or load in firing position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
27 and 39.5, for other firearms having movable chambers.
subclasses 59+ for all firearms, whether breech or muzzle
loaded, having a revolving cylinder adapted to hold two or
more cartridges and to bring each successively to firing
position.
SEE OR SEARCH CLASS:
89, Ordnance, subclasses 155+ for automatic guns with
movable chambers.
Subclass:
16
The breechblock, in opening the breech, is made to slide
rearward substantially in line with the barrel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 and 7.
Subclass:
17
Magazine-guns having a breechblock made to slide rearward
substantially in line with the gun-barrel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 and 7.
Subclass:
18
The magazine is of the side-feeding or "box" type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 and 7.
Subclass:
19
Firearms in which a rotary magazine, like a
revolver-cylinder, is employed to bring the cartridges
successively to position in line with the breech, where they
are pushed into the barrel by the returning breechblock. In
revolvers the cartridges are retained in the cylinder when
fired.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59
Subclass:
20
Guns of this type in which a pivoted hammer is employed to
strike the charge or a firing-pin which transmits the blow to
the charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 and 7.
Subclass:
21
Magazine-guns of the type in the preceding subclass.
Subclass:
22
Magazine-guns with this breech-block movement which have the
side-feeding or "box" magazine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 and 7.
Subclass:
23
The breech-block, in opening the breech, slides vertically in
a mortise.
Subclass:
24
Magazine-guns which have the breechblock fitted to slide in a
vertical mortise.
Subclass:
25
Shell-extracting devices pertaining to this type of gun.
Subclass:
26
The breech-block is hinged or pivoted and made to swing to
open the breech.
Subclass:
27
This subclass is indented under subclass 26. Firearms having
a chamber which is movable relative to the barrel and which
surrounds or holds a cartridge or load in firing position,
and which may be integral with, connected to, or separated
from, the swinging breechblock.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15 39.5 and 59+, and see the notes under subclass 15.
Subclass:
28
The breech-block being pivoted at its rear end, its front end
swings downward and to the rear to uncover the breech.
Subclass:
29
Magazine-guns in which the breech-block is pivoted at its
rear end, so its front end swings downward and to the rear.
Subclass:
30
The breech-block, pivoted at its forward end, swings outward
and forward at its rear end to open the breech.
Subclass:
31
The breech-block is pivoted at its rear end, and its front
end swings outward and to the rear to open the breech.
Subclass:
32
The breech-block, to open the breech, swings on a pivot or
hinge which is parallel with the gun-barrel axis.
Subclass:
33
Magazine-guns in which the breech-block, to open the breech,
swings on a pivot or hinge which is parallel to the
gun-axis.
Subclass:
34
The breech-block is pivoted below the gun- axis, and the
upper part of the block, to open the breech, swings rearward
and downward.
Subclass:
35
Magazine-guns in which the breech-block, to open the breech,
swings to the rear and downward.
Subclass:
36
The breech-block is pivoted at its forward part, and, to open
the breech, its rearward part swings upward and forward.
Subclass:
37
Magazine-guns in which the breech-block is pivoted at its
forward part and, to open the breech, swings the rearward
part upward and forward.
Subclass:
38
The breech-block is pivoted at the rear end, and to open the
breech, its forward end swings upward and to the rear.
Subclass:
39
Magazine-guns in which the breech-block is pivoted at its
rear end. To open the breech, its forward end swings upward
and to the rear.
Subclass:
39.5
This subclass is indented under subclass 2. Firearms having a
chamber which is movable relative to the barrel and which
surrounds or holds the cartridge or load in firing position.
(1) Note. Plural chambers carried by endless carriers and
moved by star wheels or formed by tangential contact of two
cylinders having complementary grooves, are in this subclass
rather than subclasses 59+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15 27 and 59+, and see the notes under subclass 15.
Subclass:
40
The barrel is pivoted to the stock at a point in advance of
the breech, and, to open the breech, the barrel swings on
this pivot, the muzzle downward and breech upward. These are
often styled "breakdown" guns.
Subclass:
41
This subclass is indented under subclass 40. Guns having
means functioning to ignite or to control the igniting of the
charge.
(1) Note. The term "lock" is sometimes used to designate
firing mechanism, particularly in the older patents.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 65+ for firing mechanism limited to revolvers.
subclasses 69+ for firing mechanism not limited to
revolvers nor to upward swinging breech guns.
Subclass:
42.01
With single actuator:
This subclass is indented under subclass 41. Devices having a
single trigger that is interconnected to two or more firing
train mechanisms of a firearm which is comprised of plural
barrels and may be discharged either simultaneously or
sequentially.
Subclass:
42.02
Plural triggers:
This subclass is indented under subclass 42.01. Devices
wherein the plural triggers are interconnected to a firing
train mechanism and plural triggers are operated by a single
trigger actuator.
Subclass:
42.03
Single trigger and hammer:
This subclass is indented under subclass 42.01. Devices
wherein a single trigger actuator is utilized to operate the
firing train mechanism device which discharges each of the
plural barrels.
Subclass:
43
In the breaking down of the gun or in closing the breech the
hammer is cocked.
Subclass:
44
Devices for holding or locking the breech in the closed
position.
Subclass:
45
Barrel-locking devices which also operate to cock or partly
cock the hammer.
Subclass:
46
Shell-extracting mechanism usually operated by the breakdown
of the gun.
Subclass:
47
Mechanism, usually operated by the breakdown of the gun, for
throwing out or ejecting the cartridge-shells.
Subclass:
48
The ejector is struck by an ejector hammer, usually in
breaking down the gun, and thus throws out the
cartridge-shells.
Subclass:
49.01
Magazines:
This subclass is indented under subclass 2. Devices
comprising a dtructure or compartment for storing ammunition
or explosives ready for chambering and which may be
detachable or nondetachable to the firearm.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6 for magazines guns.
11 17, 18, 21, and 22, for breech loading firearm type
magazines.
subclasses 59+ for revolving cylinders containing
cartridges.
subclasses 87+ for magazine chargers.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 33.01 for cartridge feeding devices.
Subclass:
49.02
Adapters or capacity reducers:
This subclass is indented under subclass 49.01. Devices
including structure which provides for the feeding and firing
of difference size caliber rounds within the firearm.
SEE OR SEARCH THIS CLASS, SUBCLASS:
16 for bolt adapters.
77 for barrel adapters.
Subclass:
50
The novelty resides solely in the magazine, of the
side-feeding or "box" type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88
Subclass:
51
Firearms which can be loaded only through the muzzle.
Subclass:
52
Walking-canes, which are adapted also to be used as
firearms.
Subclass:
53
Those pistols which combine therewith a sword or knife
attachment.
SEE OR SEARCH CLASS:
30, Cutlery, appropriate subclasses for cutters not attached
to or combined with a gun.
Subclass:
54
Devices--such as toy pistols, cannon, etc., -- made to
imitate firearms and which either fire an explosive, like a
cap or match, by means of some sort of a lock or which have a
barrel in which an explosive is placed and fired.
SEE OR SEARCH CLASS:
102, Ammunition and Explosives, subclasses 202+ for caps
for toy firearms.
124, Mechanical Guns and Projectors, subclass 2 for spring
or air guns which project a missile and also explode a cap.
222, Dispensing, subclass 79 for simulated firearms, e.g.,
water pistols, and subclass 192 for dispensers (other than
cartridge magazines) combined with firearms where only so
much of the firearm as is necessary to support or operate the
dispenser is claimed.
446, Amusement Devices: Toys, subclasses 398+ for
cap-exploding toy which do not simulate firearms; and
subclass 473 for toy firearms which do not explode caps.
Subclass:
55
Devices made in imitation of cannon, mortars, etc., and
adapted to hold an explosive charge, generally a firecracker.
A projectile may or may not be used.
SEE OR SEARCH CLASS:
124, Mechanical Guns and Projectors, subclass 29 for devices
made in imitation of pieces of ordnance adapted to project a
missile by some mechanical means.
Subclass:
57
The device is adapted to receive a "ribbon" of the explosives
or caps and feed this ribbon as the caps are successively
exploded by the hammer.
Subclass:
58
The toy is made to imitate a revolver.
Subclass:
59
Pistols or rifles in which there is a revolving cylinder
adapted to carry a plurality of loads and bring each load
successively to firing position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.5 for plural chambers carried by endless chains or formed
by tangential contact of two cylinders having complementary
grooves.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 13.05 for machine guns with revolving
cylinders, and subclasses 155+ for automatic guns with
movable chambers.
Subclass:
60
The revolver carries a fixed magazine from which the cylinder
is supplied or fed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
19
Subclass:
61
The cylinder can be loaded only from the forward end.
Subclass:
62
The cylinder swings outward to reload, clean, etc.
Subclass:
63
Revolvers of the breakdown type.
Subclass:
64
Devices for locking or holding the barrel in its closed
operative position.
Subclass:
65
This subclass is indented under subclass 59. Guns having
means functioning to ignite or to control the igniting of the
charge.
(1) Note. The term "lock" is sometimes used to designate
firing mechanism, particularly in the older patents.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 41+ for firing mechanism limited to upward
swinging breech guns.
subclasses 69+ for firing mechanism not limited to upward
swinging breach guns nor to revolvers.
Subclass:
66
Arrangements for preventing premature explosion of the
charge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83
Subclass:
67
Devices for checking the revolution of the cylinder and
holding it during the firing.
Subclass:
68
Shell-extracting mechanism.
Subclass:
69.01
FIRING MECHANISM:
This subclass is indented under the class definition. Devices
having devices which enable the firing train mechanism or any
part thereof to be actuated to discharge the firearm.
Subclass:
69.02
Rearward sliding breech bolt:
This subclass is indented under subclass 69.01. Devices
wherein the firearm has a rearwardly sliding breech bolt for
closing the rear part of the barrel during firing.
Subclass:
69.03
With pivoted hammer:
This subclass is indented under subclass 69.02. Devices
wherein the firing train includes a pivoted hammer for
striking a firing pin.
Subclass:
70.01
SAFETY MECHANISM:
This subclass is indented under the class definition. Devices
having means for temporarily securing some part of a firearm
to render it inoperative.
SEE OR SEARCH THIS CLASS, SUBCLASS:
41 65+ and 69.01+, for other types of safety devices on the
firearm.
SEE OR SEARCH CLASS:
89, Ordnance, subclasses 137+, 142 and 148 to 154 for safety
devices used in automatic guns.
Subclass:
70.02
Magazine operated:
This subclass is indented under subclass 70.01. Devices
wherein the security mechanism for rendering the firearm
inoperative is operated by the magazine or some element
thereof.
Subclass:
70.03
Shoulder operated:
This subclass is indented under subclass 70.01. Devices
wherein a hand held firearm includes mechanism in the butt
end of the firearm that is activated from a security
condition to an operative condition by bracing the butt end
against the shoulder of a person firing the firearm.
Subclass:
70.04
Sear trigger lock:
This subclass is indented under subclass 70.01. Devices
wherein the security mechanism prevents movement of the
firing train by preventing the operation of both the trigger
and the sear device.
(1) Note. Sear is the part or device which engages the
hammer, striker or other firing device and holds it in the
cocked position until firing is desired. The sear is
disengaged to cause firing by trigger movement.
Subclass:
70.05
Sear lock:
This subclass is indented under subclass 70.01. Devices
wherein the security mechanism prevents movement of the
firing train by preventing the operation or movement of the
sear device.
Subclass:
70.06
Trigger lock:
This subclass is indented under subclass 70.01. Devices
including means that prevent the trigger device of a firearm
from movement.
Subclass:
70.07
On trigger guard:
This subclass is indented under subclass 70.01. Devices
wherein the firearm includes a protective device over the
trigger and further includes means to cover the protective
device so as to prevent access to the trigger.
Subclass:
70.08
Hammer of firing pin:
This subclass is indented under subclass 70.01. Devices
wherein the security mechanism is located on or engages that
part of the firing mechanism that strikes the firing pin or
percussion cap to prevent discharging the firearm.
Subclass:
70.09
Responsive to particular firing angle:
This subclass is indented under subclass 70.01. Devices
having means which prevent the firearm from being discharged
unless the firearm is disposed at a particular elevation.
Subclass:
70.11
Firearm lock:
This subclass is indented under subclass 70.01. Devices
designed to prevent the use of the firearm.
Subclass:
71.01
STOCKS:
This subclass is indented under the class definition. Devices
comprising supporting framework or structure which is
normally attached to a firearm for supporting the barrel and
receiver of the firearm.
Subclass:
71.02
For pistols:
This subclass is indented under subclass 71.01. Devices
wherein the framework or structure is designed to support a
small caliber firearm which is held and fired with one hand.
SEE OR SEARCH THIS CLASS, SUBCLASS:
7 for pistol grip magazines.
Subclass:
72
Additional or auxiliary stocks to be attached usually to
pistol-handles to convert them into shoulder-guns.
Subclass:
73
Adjustably-attached stocks to permit varying the angle
between the stock and barrel.
Subclass:
74
Rubber, spring, air, or other cushioned gunbutt to diminish
the effect of the recoil or "kick" of the gun.
Subclass:
75.01
STOCK OR BARREL CONNECTORS:
This subclass is indented under the class definition. Devices
having means for fastening the stock of a firearm, the
receiver and/or the barrel to each other.
(1) Note. A receiver is that part of the gun which contains
the firing mechanism and the stock and barrel are connected
thereto.
Subclass:
75.02
Barrel to receiver:
This subclass is indented under subclass 75.01. Devices
having means for fastening the barrel of a firearm to the
receiver.
Subclass:
75.03
Receiver to stock:
This subclass is indented under subclass 75.01. Devices
having means for fastening the receiver to the stock.
Subclass:
75.04
Hinged or pivoted barrel:
This subclass is indented under subclass 75.01. Devices
wherein the barrel may be moved in any direction about an
axis relative to the stock and/or receiver.
Subclass:
76.01
BARRELS:
This subclass is indented under the class definition. Device
comprising a tubular structure through which a projectile is
fired.
(1) Note. Included in this subclass are barrels having
means for uniting two or more barrels.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 14.05 for barrels and barrel
structure used with ordnance devices.
Subclass:
76.02
Materials or coatings:
This subclass is indented under subclass 76.01. Subject
matter comprising the substance of which the barrel is made
of compositions for treating the surface or the barrel.
Subclass:
77
Barrels some of which are adapted to be placed within the
usual barrel to make a rifle in place of a shotgun or for
some other reason to reduce the usual bore; some barrels
adapted to be placed by and removed from the side of the
usual barrel to make a double-barreled gun or one with a shot
and also a rifle barrel.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 29.
102, Ammunition and Explosives, subclasses 444+ for
auxiliary barrels having a subcaliber bore and adapted to be
loaded or otherwise handled like a practice cartridge.
Subclass:
78
Gun barrels in which the novelty resides in the rifling.
This subclass includes rifling for heavy ordnance as well as
for the lighter firearms.
Subclass:
79
Gun muzzle constructions or muzzle attachments designed to
prevent the shot scattering when the charge leaves the gun.
Subclass:
83
Nipple structures and also guards either carried by the stock
or by the hammer and adapted to prevent the hammer
prematurely striking the nipple.
SEE OR SEARCH THIS CLASS, SUBCLASS:
66
Subclass:
84
Principally electric firing devices. Some alarms for
indicating when the guns of the "hammerless" type are set at
"unsafe".
(1) Note. For electrical releasing devices for mechanical
projecting devices, see Class 124, Mechanical Guns and
Projectors, subclass 32.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 28.05 for electric firing devices for
non automatic ordnance, and subclass 135 for electric firing
devices for automatic guns.
362, Illumination, subclasses 110+ for electric-lighting
devices combined with firearms.
Subclass:
85
Hands, clips, hooks, etc., combined with the gun, for
sling-strap attachment, gun-stacking, and ram or wiper rod
attachment.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., subclass 2.5 for bands
which hold the barrel of a gun to its stock and in addition
perform some other function, e.g., support a hook and/or one
or more loops, and subclass 265 for strap-end-attaching
devices.
224, Package and Article Carriers, subclass 150, for gun
slings and carriers not claiming significant gun structure.
248, Supports, subclasses 683+ for article carried supports
which support the article in storage position and remain with
the article when in use.
Subclass:
86
Gun bayonets of various kinds in combination with the
firearm.
SEE OR SEARCH THIS CLASS, SUBCLASS:
52 for cane guns combined with swords.
53 for pistols combined with swords.
90 for other type cutters combined with guns.
SEE OR SEARCH CLASS:
7, Compound Tools, subclass 158 for cutters combined with
other implements, and particularly subclass 116 for cutters
combined with intrenching tools.
30, Cutlery, pertinent subclasses, for bayonets and other
cutters, per se, and subclass 142 and indented subclasses,
for combined cutlery.
482, Exercise Devices, particularly subclass 12 for exercise
apparatus involving thrusting a pointed weapon, e.g., a
fencing foil, etc., or a simulation thereof.
Subclass:
87
Devices for temporarily holding a series of cartridges or gun
charges and inserting them in the gun-magazine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49
SEE OR SEARCH CLASS:
224, Package and Article Carriers, subclass 196, 199, 223,
239, 600+, 660+, and cross-reference art collect 931 for
cartridge holders combined with carrying means.
Subclass:
88
Cartridge-holding clips or packs for temporarily holding the
loads and inserting them in the gun-magazine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50
Subclass:
89
Devices for temporarily holding cartridges in such position
as to readily insert them in the cylinder of a revolver.
Subclass:
90
Various implements intimately associated with the use of
firearms, such as cartridge-openers, loaders for
muzzle-loading guns, wire-fence-cutting attachments when
combined with the gun, etc.
SEE OR SEARCH CLASS:
30, Cutlery, appropriate subclasses, for cutters not attached
to or combined with a gun.
Subclass:
93
Digging implements combined with the gun.
SEE OR SEARCH CLASS:
7, Compound Tools, subclass 116 for shovel type tools
combined with cutters (including bayonets).
294, Handling: Hand and Hoist-Line Implements, subclass 49,
and indented subclasses, for intrenching implements.
Subclass:
94
Various forms of arm-rests and also gun-rests adapted to
partially support the usual shoulder firearms.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 37.01 for gun mounts which completely
support a firearm or heavy gun.
Subclass:
95
For barrel cleaning:
This subclass is indented under subclass 90. Devices
including means adapted to purge residue from the bore of the
barrel of a firearm.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, subclass
104.16 for reciprocating type scrapper, cutter, wiper or
brush.
Subclass:
96
Firearm protectors:
This subclass is indented under subclass 90. Devices
including means which are utilized to preserve or safeguard
the outer or inner parts of the firearm.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70.07 for devices that fit on trigger guard to prevent
access to trigger.
74 for cushioned pads that fit over the firearm stock.
SEE OR SEARCH CLASS:
206, Special Receptacle or Package, subclass 317 for a
receptacle for a weapon (e.g., gun case).
Subclass:
97
Weights and balances:
This subclass is indented under subclass 90. Devices
including means which are attached to portions of the firearm
to equalize or to compensate for imbalance in the firearm
weight.
Subclass:
98
Shell catchers:
This subclass is indented under subclass 90. Devices
including means attached to the firearm to capture ejected
shells.
SEE OR SEARCH CLASS:
89, Ordnance, subclass 33.4 for empty shell receivers for
ordnance devices.
Subclass:
99
Magnetic holding devices:
This subclass is indented under subclass 90. Devices
including means adapted to secure devices to the firearm
magnetically.
Subclass:
100
Sight devices:
This subclass is indented under subclass 90. Devices
including attachments for hand held firearms wherein a line
of sight may be established parallel to the longitudinal axis
of the firearm or at an angle thereto.
SEE OR SEARCH CLASS:
33, Geometrical Instruments, subclasses 233+ for gun
sights, per se.
89, Ordnance, subclass 41.19 for gun sights on ordnance
devices.
Subclass:
101
Telescopic:
This subclass is indented under subclass 100. Devices
comprising a tubular optical type device for providing a
closer and magnified view of a target.
SEE OR SEARCH CLASS:
33, Geometrical Instruments, subclasses 245+ for telescopic
sights, per se.
Subclass:
102
Ventilated sights:
This subclass is indented under subclass 100. Devices
comprising metallic type strips attached longitudinally to
the barrel of a firearm for aiding in aiming the firearm at a
target.
Subclass:
103
Including lights:
This subclass is indented under subclass 100. Devices having
means for receiving light either originating from a target or
reflected from a light source on the firearm for directing
the firearm at a target.
(1) Note. Laser aiming devices are included in this
subclass, also included are devices for directing a light
beam at target for target practicing.
SEE OR SEARCH CLASS:
362, Illumination, subclasses 110+ for illumination devices
or firearms.
Subclass:
104
Finger recoil pad:
This subclass is indented under subclass 90. Devices
including devices which cushion the shock of the reaction of
trigger reversion.
Subclass:
105
For launching grenades:
This subclass is indented under subclass 90. Devices
comprising means attached to the firearm to propel a
projectile toward a target, e.g., grenade.
SEE OR SEARCH CLASS:
102, Ammunition and Explosives, subclasses 483+ for
grenades, per se.
Subclass:
106
MISCELLANEOUS:
This subclass is indented under the class definition. Devices
including firearms and accessories not classifiable in any of
the subclasses.
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