Granted Patent
Utility
US 4,316,601 · App. 06/214,059
Quick-adjusting jackstand apparatus
Inventors:
Donald L. Osborne, Joe E. Shriver
Patented Case
View Patent ↗
Granted: Feb 23, 1982
Filed: Dec 8, 1980
Inventors
Donald L. Osborne
Joe E. Shriver
Assignee (at issue)
Sperry Corp.
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.