Granted Patent
Utility
US 4,464,151 · App. 06/288,579
Sealed chain joint
Inventor:
James Kahl
Patented Case
View Patent ↗
Granted: Aug 7, 1984
Filed: Jul 30, 1981
Inventor
James Kahl
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.