IPC 2013 : F21 : LIGHTING.

IPC2013 > F > F21[c] > LIGHTING.
Notes[t] F21 - F28: LIGHTING; HEATING
Notes[n] F21:
  • Attention is drawn to Note III   of Section   H, and in particular that subclass H05B covers electrical aspects of the same technical subjects that are covered by class F21 .
F21H INCANDESCENT MANTLES; OTHER INCANDESCENT BODIES HEATED BY COMBUSTION (arrangements thereof F21V 36/00; burners F23D).
F21K LIGHT SOURCES NOT OTHERWISE PROVIDED FOR.
F21L LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION (burners F23D; electric aspects or elements, see section H, e.g. electric light sources H01J, H01K, H05B).
Notes[n] F21L:
  • This subclass covers devices or systems designed or specially adapted to be carried, e.g. by hand, or otherwise transported from place to place, e.g. on wheeled supports, in order to provide illumination as and where required. 
  • This subclass does not cover devices or systems intended for fixed installation, e.g. vehicle lighting, or for use essentially at a permanent location, which are covered by subclass F21S
  • Non-electric lighting devices are classified in groups F21L 17/00 - F21L 26/00  only if a special adaptation related to the use of a non-electric light source is of interest. 
  • In this subclass, it is desirable to add the indexing codes of subclasses F21W and F21Y .  
F21S NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF (burners F23D; electric aspects or elements, see section H, e.g. electric light sources H01J, H01K, H05B).
Notes[n] F21S:
  • This subclass covers devices or systems intended for fixed installation, e.g. vehicle lighting, or for use at a permanent location, e.g. free-standing floor- or table-lamps. 
  • This subclass does not cover devices or systems specially adapted for transportation, which are covered by subclass F21L
  • Non-electric lighting devices or systems are classified in groups F21S 11/00 - F21S 15/00  only if a special adaptation related to the use of a non-electric light source is of interest. 
  • In this subclass, it is desirable to add the indexing codes of subclasses F21W and F21Y .  
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR.
Notes[n] F21V:
  • Groups F21V 1/00 - F21V 14/00   cover details of those parts involved in light emission or distribution. Groups F21V 15/00 - F21V 31/00   cover details of those parts not so involved.
  • Details of non-electric lighting devices or systems are classified in groups F21V 35/00 - F21V 37/00   only if a special adaptation related to the use of a non-electric light source is of interest.
  • In this subclass, it is desirable to add the indexing codes of subclasses F21W and F21Y .
F21W INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS.
Notes[n] F21W:
  • This subclass constitutes an indexing scheme associated with subclasses F21L, F21S and F21V, relating to uses or applications of lighting devices or systems.
F21Y INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V, RELATING TO THE FORM OF THE LIGHT SOURCES.
Notes[n] F21Y:
  • This subclass constitutes an indexing scheme associated with subclasses F21L,   F21S and F21V, relating to the form of the light sources.