IP Library › Granted Patent US 5,114,892
Granted Patent Utility
US 5,114,892 · App. 07/631,832

Clay mixture having contamination resistance

Inventor: Arthur J. Clem
Patented Case View Patent ↗
Granted: May 19, 1992 Filed: Dec 21, 1990
Inventor
Arthur J. Clem
Assignee (at issue)
James Clem Corporation

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Quick Facts
Patent No.
US 5,114,892
App. No.
07/631,832
Filed
1990-12-21
Granted
1992-05-19
Kind
A