Granted Patent
Utility
US 4,481,864 · App. 06/400,159
Hydraulic jack with mechanical safety lock
Inventor:
Armando Peruzzi
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Jul 20, 1982
Inventor
Armando Peruzzi
Assignee (at issue)
Selenia Industrie Elettroniche Associate S.p.A.
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.