Granted Patent
Utility
US 5,201,538 · App. 07/707,018
Ergonomic cycles
Inventor:
Charles R. Mayn
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: May 29, 1991
Inventor
Charles R. Mayn
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.