Granted Patent
Utility
US 4,353,277 · App. 06/148,810
Saw chain
Inventor:
Kay Silvon
Patented Case
View Patent ↗
Granted: Oct 12, 1982
Filed: May 12, 1980
Inventor
Kay Silvon
Assignee (at issue)
Omark Industries, 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.