Granted Patent
Utility
US 4,768,340 · App. 07/042,206
Automatic displacement control for variable displacement motor
Inventor:
Paul Hamilton
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: Apr 24, 1987
Inventor
Paul Hamilton
Assignee (at issue)
AlliedSignal, 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.