Granted Patent
Utility
US 4,210,541 · App. 05/963,933
Stabilized hydraulic fluid composition
Inventor:
James T. Mann
Patented Case
View Patent ↗
Granted: Jul 1, 1980
Filed: Nov 27, 1978
Inventor
James T. Mann
Assignee (at issue)
Gulf Research & Development Company
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.