Granted Patent
Utility
US 4,667,813 · App. 06/346,683
Conveyor belt chain
Inventor:
Neal W. Densmore
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Feb 8, 1982
Inventor
Neal W. Densmore
Assignee (at issue)
Joy Manufacturing Company
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.