Granted Patent
Utility
US 5,976,052 · App. 08/696,847
Differential selection automatic gear change device for pedal vehicles
Inventor:
Jean-Paul Lenoble
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Aug 29, 1996
Inventor
Jean-Paul Lenoble
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.