Vent free gas heater

Details Vent free gas heater Vent free gas heater

2006-11-28

2006-11-28

Vinson, Brian N (Department: 2911)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Stabile space heater

Design Patent

active

D0532886

CLAIM:
The ornamental design for a vent free gas heater, as shown and described.

REFERENCES:
patent: D270858 (1983-10-01), McInnes
patent: D283343 (1986-04-01), Haythornthwaite
patent: D294289 (1988-02-01), Tongue
patent: D301924 (1989-06-01), Craver
patent: D304227 (1989-10-01), Benfield et al.
patent: D348726 (1994-07-01), Wilson
patent: D375155 (1996-10-01), Radke
patent: D376000 (1996-11-01), Wilson et al.
patent: D410075 (1999-05-01), Wilson
patent: D421647 (2000-03-01), Heger

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