Granted Patent
Utility
US 5,111,735 · App. 07/606,025
Air spring with quick release valve
Inventor:
Noel R. Johnson
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Oct 30, 1990
Inventor
Noel R. Johnson
Assignee (at issue)
Beloit 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.