Granted Patent
Utility
US 5,154,845 · App. 07/752,285
Fluorine containing lubricating composition for relatively moving metal surfaces
Inventor:
John R. Williams
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Aug 23, 1991
Inventor
John R. Williams
Assignee (at issue)
PCR, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.