Granted Patent
Utility
US 4,254,780 · App. 06/002,297
Apparatus for discharging threshed materials directly from the rotor of an axial flow combine
Inventors:
Thomas E. Powell, Edward Donaldson, Ronald F. McNeil
Patented Case
View Patent ↗
Granted: Mar 10, 1981
Filed: Jan 10, 1979
Inventors
Thomas E. Powell
Edward Donaldson
Ronald F. McNeil
Assignee (at issue)
White Motor Corporation of Canada, Limited
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.