IP Library › Granted Patent US 4,756,365
Granted Patent Utility
US 4,756,365 · App. 06/903,818

Cementing plug

Inventor: David E. Schneider
Patented Case View Patent ↗
Granted: Jul 12, 1988 Filed: Sep 4, 1986
Inventor
David E. Schneider
Assignee (at issue)
Weatherford Holding U.S., Inc.

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Quick Facts
Patent No.
US 4,756,365
App. No.
06/903,818
Filed
1986-09-04
Granted
1988-07-12
Kind
A