Granted Patent
Utility
US 4,374,628 · App. 06/188,770
Joint for securing a sickle drive pin
Inventors:
Jerry Boone, Richard L. Randall
Patented Case
View Patent ↗
Granted: Feb 22, 1983
Filed: Sep 22, 1980
Inventors
Jerry Boone
Richard L. Randall
Assignee (at issue)
Allis-Chalmers Corporation
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.