Granted Patent
Utility
US 5,669,952 · App. 08/323,480
Pressure forming of glass sheets
Inventors:
George R. Claassen, Irvin A. Wilson, David B. Rayburn, John L. McLaughlin, Rudolph A. Karlo, Jeffrey L. Marietti
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Oct 14, 1994
Inventors
George R. Claassen
Irvin A. Wilson
David B. Rayburn
John L. McLaughlin
Rudolph A. Karlo
Jeffrey L. Marietti
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.