Granted Patent
Utility
US 4,897,071 · App. 07/260,833
Combine harvester cleaning apparatus
Inventors:
Dirk J. Desnijder, Wilfried E. D. Gunst, Willy C. Hollevoet, Marc R. M. Jonckheere, Francois Van Herpe
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Oct 20, 1988
Inventors
Dirk J. Desnijder
Wilfried E. D. Gunst
Willy C. Hollevoet
Marc R. M. Jonckheere
Francois Van Herpe
Assignee (at issue)
Ford 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.