Three-dimensional [3D] framework structures

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs > Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons > Three-dimensional [3D] framework structures

CPC:

Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs (scaffolds, shutterings E04G; structures specially adapted for buildings for special purposes, general layout of buildings, e.g. modular co-ordination, E04H) > Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons (E04B1/32 - E04B1/36 take precedence; elongated load-supporting parts as elements, trusses, truss-like structures E04C3/00) > Three-dimensional [3D] framework structures

Of 9 combined children, 0 exist in both systems.

9 codes are CPC-only extensions.

Note: 8 CPC extensions are marked as secondary classification only.

Child Classifications

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E04B 1/1903 +5 CPC CPC only CPC only
E04B 2001/1924 2nd only +9 CPC CPC only CPC only
E04B 2001/1957 2nd only +4 CPC CPC only CPC only
E04B 2001/1975 2nd only CPC only CPC only
E04B 2001/1978 2nd only CPC only CPC only
E04B 2001/1981 2nd only +2 CPC CPC only CPC only
E04B 2001/199 2nd only CPC only CPC only
E04B 2001/1993 2nd only CPC only CPC only
E04B 2001/1996 2nd only CPC only CPC only