IP Library › Granted Patent US 5,271,531
Granted Patent Utility
US 5,271,531 · App. 08/054,863

Dispensing closure with pressure-actuated flexible valve

Inventors: Robert D. Rohr, John M. Hess, III
Patented Case View Patent ↗
Granted: Dec 21, 1993 Filed: Apr 27, 1993
Inventors
Robert D. Rohr
John M. Hess, III
Assignee (at issue)
Seaquist Closures, a division of Pittway Corp.

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Quick Facts
Patent No.
US 5,271,531
App. No.
08/054,863
Filed
1993-04-27
Granted
1993-12-21
Kind
A