Granted Patent
Utility
US 4,512,834 · App. 06/464,447
Method of making reduced noise positive drive power transmission system
Inventor:
Robert C. Kohrn
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Feb 7, 1983
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.