Granted Patent
Utility
US 4,898,017 · App. 07/230,327
Quick-change tooling for progressive formers and the like
Inventors:
William H. Hite, Gene E. Allebach
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Aug 9, 1988
Inventors
William H. Hite
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.