INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

Introduced: January 1985

Description

B29L is an indexing scheme that organizes patent documents in subclass B29 according to the specific end-products or articles made from plastics or plastic-state materials. Rather than classifying by processing method, B29L directs users to relevant prior art based on the final article type being manufactured—such as containers, films, pipes, or automotive components. This scheme functions as a navigational tool to help patent professionals locate existing patents related to particular plastic articles across the broader B29 processing technology classifications. It complements method-based classifications by providing product-focused access points within plastic working technologies.

Title

Titles differ between systems:

IPC: INDEXING SCHEME ASSOCIATED WITH SUBCLASS , RELATING TO PARTICULAR ARTICLES

CPC: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

Full Title

Full titles differ between systems:

IPC:

INDEXING SCHEME ASSOCIATED WITH SUBCLASS , RELATING TO PARTICULAR ARTICLES

CPC:

INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

Of 38 combined children, 0 exist in both systems.

19 codes are CPC-only extensions, 19 exist only in IPC.

Note: 19 CPC extensions are marked as secondary classification only.

IPC defines codes here since 1985.

Child Classifications

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B29L 1/00 Articles provided with screw threads since 1985 IPC only IPC only
B29L 11/00 Optical elements, e.g. lenses, prisms since 1985 IPC only IPC only
B29L 12/00 Frames since 1985 IPC only IPC only
B29L 15/00 Gear wheels or similar articles with grooves or projections, e.g. control knobs since 1985 IPC only IPC only
B29L 16/00 Articles with corrugations since 1985 IPC only IPC only
B29L 17/00 Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records since 1985 IPC only IPC only
B29L 19/00 Buttons or semi-finished parts of buttons since 1985 IPC only IPC only
B29L 2001/00 Articles provided with screw threads 2nd only +3 CPC CPC only CPC only
B29L 2005/00 Elements of slide fasteners 2nd only CPC only CPC only
B29L 2007/00 Flat articles, e.g. films or sheets (B29L2024/00 takes precedence) 2nd only +6 CPC CPC only CPC only
B29L 2009/00 Layered products 2nd only +3 CPC CPC only CPC only
B29L 2011/00 Optical elements, e.g. lenses, prisms 2nd only +6 CPC CPC only CPC only
B29L 2012/00 Frames 2nd only +1 CPC CPC only CPC only
B29L 2015/00 Gear wheels or similar articles with grooves or projections, e.g. control knobs 2nd only +2 CPC CPC only CPC only
B29L 2016/00 Articles with corrugations or pleats (B29L2023/18, take precedence) 2nd only CPC only CPC only
B29L 2017/00 2nd only +3 CPC CPC only CPC only
B29L 2019/00 Buttons or semi-finished parts of buttons 2nd only CPC only CPC only
B29L 2021/00 Hair combs or similar toothed or slotted articles 2nd only +1 CPC CPC only CPC only
B29L 2022/00 Hollow articles (tubular articles B29L2023/00; pneumatic tyres B29L2030/00) 2nd only +3 CPC CPC only CPC only
B29L 2023/00 Tubular articles (B29L2024/00 takes precedence ) 2nd only +10 CPC CPC only CPC only