Granted Patent
Utility
US 4,656,388 · App. 06/735,887
Tensed mask color cathode ray tube and mask support frame therefore
Inventor:
Paul Strauss
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: May 17, 1985
Inventor
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.