Granted Patent
Utility
US 4,289,213 · App. 06/106,056
Angular output transfer case
Inventor:
Robert L. Seaman
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Dec 21, 1979
Inventor
Robert L. Seaman
Assignee (at issue)
BorgWarner 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.