electroluminescent (electroluminescent light sources per se H05B33/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: electroluminescent

CPC: electroluminescent (electroluminescent light sources per se H05B33/00)

Full Title

Full titles differ between systems:

IPC:

Illuminated signs; Luminous advertising > with luminescent surfaces or parts > electroluminescent

CPC:

Illuminated signs; Luminous advertising (G09F9/00, G09F11/00 take precedence; control of displays in general using static means to present variable information G09G) > with luminescent surfaces or parts (luminescent compositions C09K11/00; light sources using luminescence F21K2/00) > electroluminescent (electroluminescent light sources per se H05B33/00)

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

Child Classifications

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G09F 2013/222 2nd only CPC only CPC only
G09F 2013/225 2nd only CPC only CPC only
G09F 2013/227 2nd only CPC only CPC only