Granted Patent
Utility
US 4,807,520 · App. 06/656,285
Linear hydraulic motor having a frangible piston head
Inventor:
Carlos A. Navarette
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Oct 1, 1984
Inventor
Carlos A. Navarette
Assignee (at issue)
ALLIED CONSULTING, 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.