Granted Patent
Utility
US 4,621,720 · App. 06/813,538
Dual start drive system
Inventor:
Thaddeus F. Zlotek
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Dec 26, 1985
Inventor
Thaddeus F. Zlotek
Assignee (at issue)
DANA LIMITED
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.