Granted Patent
Utility
US 4,292,795 · App. 06/095,671
Straw and chaff chopper and spreader
Inventor:
Orville J. Linn
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Nov 19, 1979
Inventor
Orville J. Linn
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.