IP Library › Granted Patent US D457,821
Granted Patent Design
US D457,821 · Confirmation No. 1149

HEATING, VENTILATING AND AIR CONDITIONING SYSTEM CONTROLLER

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 Code Description Pages PDF
2001-07-12 TRNA Transmittal of New Application 3 View
2001-07-12 SPEC Specification 2 View
2001-07-12 DRW Drawings-only black and white line drawings 4 View
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Quick Facts
Patent No.
US D457,821
App. No.
29/144,918
Filed
2001-07-12
Granted
2002-05-28
Art Unit
2912
PTA
0 days