Granted Patent
Utility
US 4,524,574 · App. 06/611,824
Underfed crop baler having single rotary feeder
Inventor:
Howard J. Ratzlaff
Patented Case
View Patent ↗
Granted: Jun 25, 1985
Filed: May 18, 1984
Inventor
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.