Granted Patent
Utility
US 6,090,020 · App. 09/013,423
Constant tension exercise device
Inventor:
Randall T. Webber
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Jan 26, 1998
Inventor
Randall T. Webber
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.