Granted Patent
Utility
US 4,301,647 · App. 06/091,258
Forage chopping cylinder
Inventors:
Harold William Voth, John King, Ronald K. Guinn
Patented Case
View Patent ↗
Granted: Nov 24, 1981
Filed: Nov 5, 1979
Inventors
Harold William Voth
John King
Ronald K. Guinn
Assignee (at issue)
Hesston 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.