Granted Patent
Utility
US 4,387,801 · App. 06/224,419
Conveyor belt
Inventor:
Merle L. Hoover, deceased
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Jan 12, 1981
Inventor
Merle L. Hoover, deceased
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.