Granted Patent
Utility
US 4,023,795 · App. 05/640,496
Cross-country ski exerciser
Inventor:
Edward A. Pauls
Patented Case
View Patent ↗
Granted: May 17, 1977
Filed: Dec 15, 1975
Inventor
Edward A. Pauls
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.