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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B TO B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
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Working of wood not provided for in subclasses B27B to B27L, e.g. by stretching
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.
{
Mechanical surface treatment
}
. .
{
for preparation of impregnation by deep incising
}
.
by compressing
.
by punching out
.
by burning or charring, e.g. cutting with hot wire (as surface treatment B44B)
{
cutting synthetic materials with heated tools B26F 3/06 to B26F 3/12
}
.
by multi-step processes
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Manufacture or reconditioning of specific semi-finished or finished articles (features of copying devices B23Q; manufacture of plywood or veneer, shaping plywood or veneer into articles B27D; of central layers for plywood B27D 1/06; nailing or stapling machines in general B27F 7/00; of elements for cooperage or wheel making B27H)
{
presses therefor B27D 3/00
}
B27M 3/0006
.
{
Devices for fixing fittings into holes
}
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.
{
of composite or compound articles (working veneer or plywood B27D)
}
B27M 3/002
. .
{
characterised by oblong elements connected at their ends (B27M 3/006 takes precedence)
}
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B27M 3/0026
. .
{
characterised by oblong elements connected laterally (B27M 3/006 takes precedence; making fencing or the like comprising bars connected by wires B21F 29/02; cane or similar material joined by strand or wire twisting B27J 1/006)
}
B27M 3/0033
. . .
{
by a plurality of clamps each used with similar articles and each functionning similarly but time-delayed
}
B27M 3/004
. . .
{
by nails, staples or screws
}
B27M 3/0046
. . .
{
by rods or tie wires
}
B27M 3/0053
. . .
{
using glue
}
B27M 3/006
. .
{
characterised by oblong elements connected both laterally and at their ends
}
B27M 3/0066
. .
{
characterised by tongue and groove or tap hole connections
}
B27M 3/0073
. .
{
characterised by nailing, stapling or screwing connections
}
B27M 3/008
. .
{
characterised by bar or grill connections
}
B27M 3/0086
. .
{
characterised by connecting using glue
}
B27M 3/0093
.
{
of raised panels, i.e. panels having a profiled surface
}
B27M 3/02
.
of roofing elements, e.g. shingles
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B27M 3/04
.
of flooring elements, e.g. parqueting blocks (assembling wooden elements on backings of other substances B32B,
{
e.g. B32B 21/042, E04F 15/16; furniture joints F16B 12/00
}
)
B27M 3/06
. .
of composite floor plates per se by assembling or jointing the parqueting blocks
B27M 3/08
.
of specially shaped wood laths or strips
{
covering of mouldings with veneer B27D 1/08
}
B27M 3/10
.
of airscrew blades
{
milling of propeller blades B23C 3/16
}
B27M 3/12
.
of railings, stairs, stair stringers, ladders, or parts thereof
B27M 3/14
.
of railroad sleepers
B27M 3/16
.
of tool handles or tools, e.g. mallets
.
of furniture
{
or of doors (B27D 5/003 takes precedence)
}
B27M 3/20
.
of lasts; of shoes, e.g sabots; of parts of shoes, e.g. heels
B27M 3/22
.
of sport articles, e.g. bowling pins, frames of tennis rackets, skis, paddles
B27M 3/24
.
of household utensils, e.g. spoons, clothes hangers, clothes pegs
B27M 3/26
.
of smokers utensils, e.g. pipes
B27M 3/28
.
of dowels or bolts
{
wood screws B23G
}
B27M 3/30
.
of bobbins
B27M 3/32
.
of tapered poles, e.g. mine props
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B27M 3/34
.
of cases, trunks, or boxes, of wood or equivalent material which cannot satisfactorily be bent without softening (nailing or stapling in general B25C, B27F; of cardboard, paper, or similarly workable material B31B)
{
Manufacture of cleats therefor (manufacture of tubes, coops or barrels B27D 1/00, B27D 1/08; by folding grooved panels B27G 5/00)
}
B27M 3/36
. .
Machines or devices for attaching blanks together, e.g for making wire-bound boxes
{
manufacture of wire-bound wooden tubes B27H 5/02
}
B27M 3/38
.
of walking sticks or of sticks for umbrellas
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013