Granted Patent
Utility
US 4,320,825 · App. 06/115,608
Material conveying apparatus
Inventors:
Floyd E. Buschbom, Glen D. Hansen
Patented Case
View Patent ↗
Granted: Mar 23, 1982
Filed: Jan 28, 1980
Inventors
Floyd E. Buschbom
Glen D. Hansen
Assignee (at issue)
Veda Incorporated
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.