Granted Patent
Utility
US 4,493,221 · App. 06/457,338
Variable speed, belt driven transmission system, speed sensing driver pulley and method
Inventors:
Richard F. Stieg, John P. Dolan, W. Spencer Worley, III, Tristan D. Juergens
Patented Case
View Patent ↗
Granted: Jan 15, 1985
Filed: Jan 12, 1983
Inventors
Richard F. Stieg
John P. Dolan
W. Spencer Worley, III
Tristan D. Juergens
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.