Granted Patent
Utility
US 4,602,779 · App. 06/552,803
Exercise treadmill
Inventor:
Ralph Ogden
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: Nov 17, 1983
Inventor
Ralph Ogden
Assignee (at issue)
Ajax Enterprises Corporation
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.