Granted Patent
Utility
US 5,722,643 · App. 08/612,278
Temperature compensated safety gas spring
Inventors:
James B. Chamberlin, Alfred W. Siman
Patented Case
View Patent ↗
Granted: Mar 3, 1998
Filed: Mar 7, 1996
Inventors
James B. Chamberlin
Alfred W. Siman
Assignee (at issue)
AVM, Inc.
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.