Granted Patent
Utility
US 4,271,663 · App. 06/051,262
Releasable locking coupling pin for chain links
Inventors:
Harry W. Templin, Edward O. Enders
Patented Case
View Patent ↗
Granted: Jun 9, 1981
Filed: Jun 22, 1979
Inventors
Harry W. Templin
Edward O. Enders
Assignee (at issue)
FMC CORPORATION
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.