Granted Patent
Utility
US 5,226,866 · App. 07/877,524
Trimodal exercise apparatus
Inventors:
Timothy S. Engel, Stephen S. Peterson, James R. Bostic
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: May 1, 1992
Inventors
Timothy S. Engel
Stephen S. Peterson
James R. Bostic
Assignee (at issue)
NordicTrack, 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.