Granted Patent
Utility
US 4,535,915 · App. 06/516,378
Delivery and metering device for granulated and powdered materials
Inventor:
Joe E. West
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Jul 22, 1983
Inventor
Joe E. West
Assignee (at issue)
Western Company of North America
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.