Granted Patent
Utility
US 4,540,056 · App. 06/607,017
Cutter assembly
Inventor:
Thomas A. O'Hanlon
Patented Case
View Patent ↗
Granted: Sep 10, 1985
Filed: May 3, 1984
Inventor
Thomas A. O'Hanlon
Assignees (at issue)
Inco Limited
Falconbridge Limited
Noranda Inc.
Kidd Creek Mines Ltd.
Flow Industries, Ltd.
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.