Granted Patent
Utility
US 5,036,864 · App. 07/535,245
Torque ring for belt
Inventor:
Edward H. Yewer, Jr.
Patented Case
View Patent ↗
Granted: Aug 6, 1991
Filed: Jun 8, 1990
Inventor
Edward H. Yewer, Jr.
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.