Granted Patent
Utility
US 4,295,837 · App. 06/130,661
Synchronous belt drive system
Inventor:
Richard L. Marsh
Patented Case
View Patent ↗
Granted: Oct 20, 1981
Filed: Mar 17, 1980
Inventor
Richard L. Marsh
Assignee (at issue)
DayCo Holdings, LP
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.