Granted Patent
Utility
US 4,328,879 · App. 06/189,489
Shock-absorbing sprocket, drive assembly, and the like
Inventor:
Robert P. Tone
Patented Case
View Patent ↗
Granted: May 11, 1982
Filed: Sep 22, 1980
Inventor
Robert P. Tone
Assignee (at issue)
The Gates Rubber Company
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.