Granted Patent
Utility
US 4,767,962 · App. 06/881,169
Color cathode ray tube and tensible shadow mask blank for use therein
Inventors:
Robert P. Adler, Charles J. Prazak, III
Patented Case
View Patent ↗
Granted: Aug 30, 1988
Filed: Jul 2, 1986
Inventors
Robert P. Adler
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.