Granted Patent
Utility
US 4,266,391 · App. 06/091,436
Header attachment mechanism for combines
Inventors:
James W. McDuffie, Larimer J. Knepper, Larimer J. Knipper
Patented Case
View Patent ↗
Granted: May 12, 1981
Filed: Nov 5, 1979
Inventors
James W. McDuffie
Larimer J. Knepper
Larimer J. Knipper
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.