IP Library › Granted Patent US 5,326,485
Granted Patent Utility
US 5,326,485 · App. 08/119,454

Low ash lubricating oil compositions

Inventors: Michelle M. Cervenka, Marsha J. Lester
Patented Case View Patent ↗
Granted: Jul 5, 1994 Filed: Sep 10, 1993
Inventors
Michelle M. Cervenka
Marsha J. Lester
Assignee (at issue)
Ethyl Petroleum Additives, Inc.

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Quick Facts
Patent No.
US 5,326,485
App. No.
08/119,454
Filed
1993-09-10
Granted
1994-07-05
Kind
A