Granted Patent
Utility
US 4,617,786 · App. 06/641,049
Forage harvester having supplemental crop disintegrating means
Inventors:
Ferol S. Fell, Howard J. Ratzlaff
Patented Case
View Patent ↗
Granted: Oct 21, 1986
Filed: Aug 15, 1984
Inventors
Ferol S. Fell
Howard J. Ratzlaff
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.