Granted Patent
Utility
US 4,344,443 · App. 06/165,161
Cleaning apparatus of combine harvesters
Inventors:
Cyriel R. J. De Busscher, Walter V. Deleu, Francois Van Herpe
Patented Case
View Patent ↗
Granted: Aug 17, 1982
Filed: Jul 1, 1980
Inventors
Cyriel R. J. De Busscher
Walter V. Deleu
Francois Van Herpe
Assignee (at issue)
Sperry Corp.
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.