Granted Patent
Utility
US 6,274,244 · App. 07/799,806
Multilayer heat processable vacuum coatings with metallic properties
Inventors:
James J. Finley, Mehran Arbab, Thomas J. Waynar
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Nov 29, 1991
Inventors
James J. Finley
Mehran Arbab
Thomas J. Waynar
Assignee (at issue)
PPG Industries Ohio, 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.