Granted Patent
Utility
US 4,758,210 · App. 07/032,813
Silent chain and sprocket system
Inventor:
Timothy J. Ledvina
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Apr 1, 1987
Inventor
Timothy J. Ledvina
Assignee (at issue)
Borg-Warner Automotive, 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.