Granted Patent
Utility
US 5,067,932 · App. 07/618,934
Dual-input infinite-speed integral motor and transmission device
Inventor:
Jonathan Edwards
Patented Case
View Patent ↗
Granted: Nov 26, 1991
Filed: Nov 28, 1990
Inventor
Jonathan Edwards
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.