Granted Patent
Utility
US 4,951,937 · App. 07/322,560
Load mechanism for exercise devices
Inventors:
Mark J. Hoffenberg, Robert A. Walpert
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Mar 13, 1989
Inventors
Mark J. Hoffenberg
Robert A. Walpert
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.