Granted Patent
Utility
US 4,756,735 · App. 07/077,152
In-lehr press bending
Inventors:
William P. Cathers, Thomas J. Reese
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Jul 24, 1987
Inventors
William P. Cathers
Thomas J. Reese
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.