Granted Patent
Utility
US 4,422,359 · App. 06/309,314
Adjustable slitter blade holder
Inventor:
William E. LeBoeuf
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: Oct 7, 1981
Inventor
William E. LeBoeuf
Assignee (at issue)
THE DOW CHEMICAL 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.