Granted Patent
Utility
US 4,469,336 · App. 06/065,027
Track pin seal
Inventor:
Terry D. Linne
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Aug 9, 1979
Inventor
Terry D. Linne
Assignee (at issue)
Caterpillar Tractor Co.
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.