IP Library › Granted Patent US 5,921,862
Granted Patent Utility
US 5,921,862 · App. 09/016,063

Air flow reversal prevention door assembly

Inventor: Frank J. Ucciardi
Patented Case View Patent ↗
Granted: Jul 13, 1999 Filed: Jan 30, 1998
Inventor
Frank J. Ucciardi
Assignee (at issue)
Consol, Inc.

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Quick Facts
Patent No.
US 5,921,862
App. No.
09/016,063
Filed
1998-01-30
Granted
1999-07-13
Kind
A