Granted Patent
Utility
US 5,113,979 · App. 07/658,321
Base valve for a shock absorber
Inventor:
Jan Driessen
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Feb 28, 1991
Inventor
Jan Driessen
Assignee (at issue)
Monroe Auto Equipment Company
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.