Granted Patent
Utility
US 4,784,579 · App. 06/944,496
Hydraulic-pneumatic power transfer unit
Inventor:
Raymond W. Gazzera
Patented Case
View Patent ↗
Granted: Nov 15, 1988
Filed: Dec 19, 1986
Inventor
Raymond W. Gazzera
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.