Granted Patent
Utility
US 4,589,458 · App. 06/665,737
Multiple saw blade adjustable dado cutter
Inventor:
Wilfred M. McCord, Jr.
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Oct 29, 1984
Inventor
Wilfred M. McCord, Jr.
Assignee (at issue)
Vermont American 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.