Granted Patent
Utility
US 4,787,196 · App. 07/028,945
Self-cleaning rotor assembly
Inventors:
Franja F. Voler, John K. Hale, Earl E. Koch
Patented Case
View Patent ↗
Granted: Nov 29, 1988
Filed: May 22, 1987
Inventors
Franja F. Voler
John K. Hale
Earl E. Koch
Assignee (at issue)
New Holland, Inc.
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.