Granted Patent
Utility
US 5,098,348 · App. 07/584,348
Drive sprocket for a chain saw
Inventor:
Timothy H. O'Neel
Patented Case
View Patent ↗
Granted: Mar 24, 1992
Filed: Sep 18, 1990
Inventor
Timothy H. O'Neel
Assignee (at issue)
Blount, 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.