Granted Patent
Utility
US 4,245,524 · App. 05/958,907
Steering differential
Inventor:
James R. Dammon
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Nov 8, 1978
Inventor
James R. Dammon
Assignee (at issue)
FAIRFIELD MANUFACTURING COMPANY, INC.
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.