Granted Patent
Utility
US 4,513,688 · App. 06/459,767
Pelletized material feeder
Inventor:
Arthur L. Fassauer
Patented Case
View Patent ↗
Granted: Apr 30, 1985
Filed: Jan 21, 1983
Inventor
Arthur L. Fassauer
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.