Granted Patent
Utility
US 4,241,577 · App. 06/068,756
Auxiliary drive system with neutral
Inventor:
Dale Lee Baldauf
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Aug 23, 1979
Inventor
Dale Lee Baldauf
Assignee (at issue)
The Paul Revere 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.