Granted Patent
Utility
US 4,995,587 · App. 07/431,272
Motion amplifier employing a dual piston arrangement
Inventor:
Richard C. Alexius
Patented Case
View Patent ↗
Granted: Feb 26, 1991
Filed: Nov 3, 1989
Inventor
Richard C. Alexius
Assignee (at issue)
LOCKHEED MARTIN 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.