IP Library › Granted Patent US 4,436,150
Granted Patent Utility
US 4,436,150 · App. 06/306,150

Bridge plug

Inventor: James M. Barker
Patented Case View Patent ↗
Granted: Mar 13, 1984 Filed: Sep 28, 1981
Inventor
James M. Barker
Assignee (at issue)
Otis Engineering Corporation

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Quick Facts
Patent No.
US 4,436,150
App. No.
06/306,150
Filed
1981-09-28
Granted
1984-03-13
Kind
A