This class includes all structures by which a roadway or railroad
is carried across a space intervening between supports and all structures,
such as gates, etc., whose operation is dependent upon the operation
of the bridge (as in drawbridges). Included in this class are both
construction techniques and methods for building a bridge, regardless
There has been no attempt in this classification to separate
lateral bracing. Sometimes, as in suspension bridges, the lateral
bracing is more or less peculiar to the class of bridge structure.
In some cases there appears to be no distinction in either structure
or function between bracing intended to strengthen a bridge against
wind pressure and that intended to support weight, and they have
all been classified together. Except as provided for under ARCH
and SUSPENSION bridges, support at the approaches (land to bridge
transition) are generally considered to be a retaining wall-type
Static Structures (e.g., Buildings), appropriate subclasses for in situ erected building structures
of more general application, particularly
subclasses 86 -89 for a vertically curved arch, subclasses 169.1-170
for a building with defined terrain and feature, subclasses 174-176 for
buildings with traffic guiding feature, subclasses 177-181 for building
or building components with wear or friction-type traffic surface,
subclasses 262 and 263 for horizontal barrier resting on vertical
supports, and subclasses 639-644 for curvilinear or peaked truss.
subclasses 35 -47 for turntables, subclass 124 for elevated structure
for supporting an overhead railroad, and subclasses 275-277 for
devices for crossing of railroad tracks by fire hose to avoid interference
with car movement.
Elevator, Industrial Lift Truck, or Stationary Lift
for Vehicle, appropriate subclasses for apparatus having a vertically
shiftable load underlying supporting surface driven along a guided
path and which moves an entire detachable load between vertically
Hydraulic and Earth Engineering, appropriate subclasses for piers which do not include specific
bridge or bridge coacting structure, e.g., drain pipes to conduct
water runoff away from a bridge roadway, and especially
subclasses 195.1 -228 for such piers located in a marine environment,
subclasses 229-257 for the residue of the piers of this (405) class
and subclasses 284-287 for a retaining wall-type abutment (at the
bridge approach) supporting a superstructure end.
Material or Article Handling, appropriate subclasses for apparatus used to place
or displace a component in a particular manner or with reference
to a particular support and for ramps loading to or from a marine
This subclass is indented under the class definition. Bridges combining principle of the truss (i.e., framework
with distinct reinforcement for tension and compression, e.g., Fink,
W, Hip, Bowstring type) with that of the arch, the truss and arch
being connected, but usually being clearly distinguishable as separate
Material or Article Handling,
subclasses 137.1-143.2 for a bridge or gangway with means to effect movement
of cargo to or from a marine vessel and for the combination of a bridge
or gangway with a ship and with additional material handling structure
excluded from Class 14 (or from Class 114).
This subclass is indented under subclass 2.4. Bridge including means adapted to engage flowable terrain
intermediate the first and second land mass, which means is made
buoyant to rest on the flowable material and support a portion of
the bridge thereon.
Static Structures (e.g., Buildings),
subclasses 633 through 697for openwork of more general application, particularly
subclasses 639-644 for curvilinear or peaked trusses and subclasses
690-696 for straight trusses; and subclasses 831-857 for elongated rigid
This subclass is indented under subclass 3. Devices connecting the end of the arch member of bowstring
trusses to the tension member and immediate connections between
compression and tension chord members.
Static Structures (e.g., Buildings), appropriate subclasses for other building structure of
more general application, particularly
subclasses 146 -152 for vertical structures with diagonal brace
or guy, subclasses 155-165 for piercing or expanding land anchors, subclasses
292-299 for footings for vertical structures, and subclasses 223.1-223.14
for a structure having a prestressing feature.
Static Structures (e.g., Buildings), appropriate subclasses for other static structures of more
general application, particularly
subclasses 86 -89 for vertically curved arches with a terminal
support, subclasses 245-249 for curvilinear barriers, subclasses
639-644 for curvilinear or peaked trusses, subclasses 223.1-223.14
for a structure having a prestressing feature, and subclasses 690-696
for other trusses.
Flexible or Portable Closure, Partition, or Panel,
subclasses 136 -165 for lazy tongs operated and other forms of plural
strip, slat or panel devices in which the elements intersect to
form parallelograms pivoted at their points of intersection.
This subclass is indented under subclass 31. Devices usually constituting part of the floor or roadway
and connecting the draw to the fixed span (being hinged to one or
the other), which are moved out of the way either prior to or during
the movement of the draw.
This subclass is indented under subclass 31. Structures, actuated by drawbridges, which when the draw
is open project above the roadway to receive the impact of a moving
car or other object and designed to resist considerable force.
Flexible or Portable Closure, Partition, or Panel, appropriate subclasses for (1) gates in the form
of panel units in which a flexible fabric or other flexible sheet
material forms the panel portion, (2) panel units formed of plural
strips, slats or panels interconnected for relative motion (excluding those
connected only by a common operator or mounted only on a common
support or in a common frame), where the relation to a bridge or
the features of bridge structure are not claimed.
This subclass is indented under the class definition. Subject matter comprising a floored, narrow structure especially
adapted to serve as a bridge for supporting persons or material
or conveying them between ordinarily disassociated bases.
Note. Included in this subclass and the subclasses thereunder
are loading docks and related structure.
Material or Article Handling,
subclasses 137.1 -143.2 and 537 for a bridge or gangway with means
to effect movement of cargo to or from a marine vessel and for the
combination of a bridge or gangway with a ship and with additional
material handling structure excluded from Class 14 (or from Class
subclasses 321 -338 for a people carrying conveyor of the endless
belt type, subclasses 793-803.15 for a load supporting platform
moved about an endless path, and subclasses 804-853 for an endless
This subclass is indented under subclass 69.5. Bridging structure in which one end thereof is secured to
one of the ordinarily disassociated bases.
Note. Securement of the gangway to the base in this subclass
is intended to include a loose securement; e.g., the provision to
allow the gangway to pivot vertically or horizontally with respect
to the base to which it is attached is included herein as is the
provision to allow the gangway to slide horizontally with respect
to the base.
Note. Dock levelers generally are classified in this subclass
and the indented subclasses.
Material or Article Handling,
subclasses 137.1 -143.2 for a bridge or gangway with means to effect
movement or cargo to or from a marine vessel and for the combination
of a bridge or gangway with a ship and with additional material
handling structure excluded from Class 14 (or from Class 114, Ships).
This subclass is indented under subclass 71.1. Bridging structure including means to force at least a portion
of the person or material supporting structure in a vertical direction
for repositioning of the gangway to properly relate to the disassociated
This subclass is indented under subclass 71.3. Bridging structure, one end of which is attached to a building
or other fixed base wherein the gangway includes a protective shroud
adapted to cover and isolate any person or material supported thereon
from the atmosphere and including provision to cause the end of
the gangway remote from the fixed base to cooperatively interfit
with a mobile base.
Static Structures (e.g., Buildings), appropriate subclasses for ceiling, flooring or roof constructions,
subclasses 174 -176 for buildings with traffic feature; subclasses 223.1-223.14
for a structure having a prestressing feature; subclasses 319-341
for cast-in situ ribbed concrete constructions with attached flooring or
ceiling; subclasses 578-592.6 for modules, panels or slabs with
edgewise connecting features; and subclasses 660-676 for gratings.
This subclass is indented under the class definition. Subject matter including means between a bridge component
and a support base (e.g., the earth, a column, pier, wall, or abutment) which
allows slight movement of the bridge with respect to the base.
Note. The "slight movement" referred to in
this subclass includes shifting incidental to temperature change
of the bridge parts.
This subclass is indented under the class definition. Subject matter comprising a distinct generally horizontal
structural member in the superstructure for supporting a traffic
Note. Structure in this subclass is generally either one
usually solid piece (e.g., I, W, S, polygonal, ellipsoidal beam
or AASHTO type I-VI beam) or fabricated from solid pieces (e.g.,
box beam), both without distinguishable support elements for tension
Note. Included in this subclass are prestressed beams.
Hydraulic and Earth Engineering,
subclasses 222 , 223, and 224-228 for masonry and concrete piers
and methods for constructing the same in a marine environment and
subclasses 231-257 for piers and construction methods therefor not
specifically for use in marine environments.
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