Granted Patent
Utility
US 4,373,537 · App. 06/297,693
Grain separating apparatus
Inventor:
James B. McNaught
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Aug 31, 1981
Inventor
James B. McNaught
Assignee (at issue)
Massey-Ferguson Services, N.V.
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.