Granted Patent
Utility
US 4,892,504 · App. 07/174,786
Straw chopper and spreader assembly
Inventors:
William A. Scott, Bernard Penner
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: Mar 29, 1988
Inventors
William A. Scott
Bernard Penner
Assignee (at issue)
Gehl Company
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.