Granted Patent
Utility
US 4,615,197 · App. 06/657,950
Thread rolling monitoring system
Inventor:
Gene E. Allebach
Patented Case
View Patent ↗
Granted: Oct 7, 1986
Filed: Oct 5, 1984
Inventor
Gene E. Allebach
Assignee (at issue)
NATIONAL MACHINE 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.