Granted Patent
Utility
US 6,225,736 · App. 09/283,508
Color picture tube having a low expansion tension mask attached to a higher expansion frame
Inventor:
Istvan Gorog
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Apr 1, 1999
Inventor
Istvan Gorog
Assignee (at issue)
Thomson Licensing
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.