Granted Patent
Utility
US 4,942,332 · App. 07/279,180
Tied slit mask for color cathode ray tubes
Inventors:
Robert P. Adler, John Coult, Paul Strauss
Patented Case
View Patent ↗
Granted: Jul 17, 1990
Filed: Dec 2, 1988
Inventors
Robert P. Adler
John Coult
Paul Strauss
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.