Granted Patent
Utility
US 4,416,649 · App. 06/075,476
Reduced noise positive drive power transmission system
Inventor:
Robert C. Kohrn
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: Sep 14, 1979
Inventor
Robert C. Kohrn
Assignee (at issue)
Uniroyal Ltd.
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.