Granted Patent
Utility
US 3,984,160 · App. 05/639,512
One-piece rear grease seal
Inventors:
Jerome F. Sheldon, Donald MacLeod
Patented Case
View Patent ↗
Granted: Oct 5, 1976
Filed: Dec 10, 1975
Inventors
Jerome F. Sheldon
Donald MacLeod
Assignee (at issue)
REXNORD GMBH
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.