Granted Patent
Utility
US 4,355,502 · App. 06/219,687
Polymeric chain link with integral telescoping barrel
Inventor:
Jerome F. Sheldon
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Dec 24, 1980
Inventor
Jerome F. Sheldon
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.