Use of materials for tobacco smoke filters

Introduced: January 1980

Full Title

Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes > Use of materials for tobacco smoke filters

Of 7 combined children, 4 exist in both systems.

3 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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A24D 3/061 CPC only CPC only
A24D 3/062 +2 CPC CPC only CPC only
A24D 3/067 +1 CPC CPC only CPC only
A24D 3/08 of organic materials as carrier or major constituent (of ion exchange materials A24D3/12) since 1980 IPC+CPC Available in IPC and CPC
A24D 3/12 of ion exchange materials since 1980 IPC+CPC Available in IPC and CPC
A24D 3/14 of organic materials as additive (of ion exchange materials A24D3/12) since 1980 +1 CPC IPC+CPC Available in IPC and CPC
A24D 3/16 of inorganic materials since 1980 +2 CPC IPC+CPC Available in IPC and CPC