Granted Patent
Utility
US 4,933,591 · App. 07/280,755
Double saggital pull stroke amplifier
Inventor:
Paul H. Stahlhuth
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Dec 6, 1988
Inventor
Paul H. Stahlhuth
Assignee (at issue)
Ford Aerospace Corporation
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.