characterised by a discontinuous layer, i.e. formed of separate pieces of material

Introduced: September 1968

Title

Titles differ between systems:

IPC: characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material

CPC: characterised by a discontinuous layer, i.e. formed of separate pieces of material

Full Title

Full titles differ between systems:

IPC:

Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form > characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material

CPC:

Of 4 combined children, 3 exist in both systems.

1 codes exist only in IPC.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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B32B 3/12 characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure IPC+CPC Available in IPC and CPC
B32B 3/14 characterised by a face layer formed of separate pieces of material IPC+CPC Available in IPC and CPC
B32B 3/18 characterised by an internal layer formed of separate pieces of material IPC+CPC Available in IPC and CPC
B32B 3/24 characterised by an apertured layer, e.g. of expanded metal IPC only IPC only