Granted Patent
Utility
US 4,874,349 · App. 07/129,802
Seal and dust guard assembly for a universal joint trunnion
Inventor:
Ray A. Gall
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Dec 7, 1987
Inventor
Ray A. Gall
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.