Granted Patent
Utility
US 4,218,193 · App. 05/674,778
Hydraulic pump drive
Inventor:
John T. Mehne
Patented Case
View Patent ↗
Granted: Aug 19, 1980
Filed: Apr 8, 1976
Inventor
John T. Mehne
Assignee (at issue)
Teledyne Industries, 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.