Granted Patent
Utility
US 4,471,639 · App. 06/438,152
Roll orientation control system for straightening machines
Inventor:
Terry L. Gerber
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Nov 1, 1982
Inventor
Terry L. Gerber
Assignee (at issue)
E. W. Bliss Company, 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.