Granted Patent
Utility
US 4,757,988 · App. 07/099,507
Cycle exerciser
Inventor:
Eugene J. Szymski
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Sep 21, 1987
Inventor
Eugene J. Szymski
Assignee (at issue)
Schwinn Bicycle 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.