Granted Patent
Utility
US 4,592,556 · App. 06/682,121
Slip joint seal assembly
Inventors:
Andrew L. Nieman, Ray A. Gall
Patented Case
View Patent ↗
Granted: Jun 3, 1986
Filed: Dec 17, 1984
Inventors
Andrew L. Nieman
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.