Granted Patent
Utility
US 4,381,933 · App. 06/345,494
Method and apparatus for shaping moving glass sheets by sagging followed by roll pressing
Inventors:
Stephen J. Schultz, Terry L. Wolfe
Patented Case
View Patent ↗
Granted: May 3, 1983
Filed: Jan 25, 1982
Inventors
Stephen J. Schultz
Terry L. Wolfe
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.