Granted Patent
Utility
US 4,480,735 · App. 06/423,616
Cam actuated control for material unloader
Inventor:
Larry J. Pingry
Patented Case
View Patent ↗
Granted: Nov 6, 1984
Filed: Sep 27, 1982
Inventor
Larry J. Pingry
Assignee (at issue)
The Paul Revere 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.