Pyramidal diffuser

Details Pyramidal diffuser Pyramidal diffuser

2008-05-06

2008-05-06

Nunn, Freda S. (Department: 2911)

Lighting

Light fixture

Element or attachment

Design Patent

active

D0568529

CLAIM:
The ornamental design for a pyramidal diffuser, as shown and described.

REFERENCES:
patent: D185976 (1959-08-01), Meyer
patent: D208461 (1967-09-01), Morgan
patent: D209721 (1967-12-01), Stanley
patent: D214939 (1969-08-01), Arrigoni
patent: 3922073 (1975-11-01), Schwartz
patent: D300877 (1989-04-01), Cyr
patent: D362081 (1995-09-01), Bilbrey
patent: D411031 (1999-06-01), Conn et al.
patent: D473667 (2003-04-01), Fromm
patent: D499480 (2004-12-01), Stauffer

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