Granted Patent
Utility
US 5,540,639 · App. 08/124,673
Device to prevent arcuate motion of a user assist platform for an upper body exercise apparatus
Inventors:
Lanny L. Potts, Fred H. Holmes
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Sep 21, 1993
Inventors
Lanny L. Potts
Fred H. Holmes
Assignee (at issue)
StairMaster Sports/Medical Products, 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.