Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching

Introduced: September 1968

Title

Titles differ between systems:

IPC: Working of wood not provided for in subclasses , e.g. by stretching

CPC: Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching

Full titles differ between systems:

IPC:

Working of wood not provided for in subclasses , e.g. by stretching

CPC:

Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

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B27M 1/003 +1 CPC CPC only CPC only
B27M 1/02 by compressing IPC+CPC Available in IPC and CPC
B27M 1/04 by punching out IPC+CPC Available in IPC and CPC
B27M 1/06 by burning or charring, e.g. cutting with hot wire (as surface treatment B44B ) IPC+CPC Available in IPC and CPC
B27M 1/08 by multi-step processes since 1974 IPC+CPC Available in IPC and CPC

Class B27,2013–2023, worldwide · Source: EPO PATSTAT

Class B27,2013–2023, worldwide · Source: EPO PATSTAT