Granted Patent
Utility
US 4,672,260 · App. 06/754,786
Registration-enhancing means and method for color cathode ray tubes having the tensed foil shadow mask
Inventor:
Charles J. Prazak, III
Patented Case
View Patent ↗
Granted: Jun 9, 1987
Filed: Jul 12, 1985
Inventor
Charles J. Prazak, III
Assignee (at issue)
Zenith Electronics LLC
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.