Granted Patent
Utility
US 4,577,406 · App. 06/655,118
Retracting internal tube cutter
Inventors:
Joseph J. Idzik, Charles H. Kouse
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Sep 26, 1984
Inventors
Joseph J. Idzik
Charles H. Kouse
Assignee (at issue)
Elliott Turbomachinery Co., Inc.
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.