Granted Patent
Utility
US 5,626,539 · App. 08/589,120
Treadmill apparatus with dual spring-loaded treads
Inventors:
Gary D. Piaget, Trace O. Gordon
Patented Case
View Patent ↗
Granted: May 6, 1997
Filed: Jan 19, 1996
Inventors
Gary D. Piaget
Trace O. Gordon
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.