Granted Patent
Utility
US 4,964,292 · App. 07/387,035
Shock-absorbing fluid-actuated pressure system
Inventors:
John J. Kaelin, Gary L. Port
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Jul 31, 1989
Inventors
John J. Kaelin
Gary L. Port
Assignee (at issue)
Huck Manufacturing Co.
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.