Granted Patent
Utility
US 5,938,551 · App. 08/829,131
Variable tension pulley system
Inventor:
Patrick A. Warner
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Mar 28, 1997
Inventor
Patrick A. Warner
Assignee (at issue)
Schwinn Cycling & Fitness Inc.
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.