Granted Patent
Utility
US 4,489,985 · App. 06/394,348
Cutter drum extension latching mechanism
Inventor:
Frank B. Kendrick
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Jul 1, 1982
Inventor
Frank B. Kendrick
Assignee (at issue)
Joy Manufacturing Company
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.