Granted Patent
Utility
US 4,904,294 · App. 07/288,348
Belt assisted press bending
Inventors:
Stephen J. Schultz, Terry L. Wolfe, Richard E. Wilhelm
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Dec 22, 1988
Inventors
Stephen J. Schultz
Terry L. Wolfe
Richard E. Wilhelm
Assignee (at issue)
PPG Industries, 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.