IP Library › Granted Patent US 5,090,439
Granted Patent Utility
US 5,090,439 · App. 07/383,437

Atmospheric compensating automatic air release valve

Inventors: Vincent M. Sabalvaro, III, Ralph N. DiLorenzo
Patented Case View Patent ↗
Granted: Feb 25, 1992 Filed: Jul 24, 1989
Inventors
Vincent M. Sabalvaro, III
Ralph N. DiLorenzo
Assignee (at issue)
APCO Valve and Primer Corporation

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Quick Facts
Patent No.
US 5,090,439
App. No.
07/383,437
Filed
1989-07-24
Granted
1992-02-25
Kind
A