Granted Patent
Utility
US 5,085,616 · App. 07/654,740
Cleaning system for a combine
Inventors:
Robert A. Matousek, Jon E. Ricketts
Patented Case
View Patent ↗
Granted: Feb 4, 1992
Filed: Feb 13, 1991
Inventors
Robert A. Matousek
Jon E. Ricketts
Assignee (at issue)
Case GmbH
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.