Granted Patent
Utility
US 5,090,933 · App. 07/520,477
Provision of support for tension shadow mask by which a predetermined Q-height is established without post-installation modification thereof
Inventors:
Raymond G. Capek, Siegfried M. Greiner
Patented Case
View Patent ↗
Granted: Feb 25, 1992
Filed: May 8, 1990
Inventors
Raymond G. Capek
Siegfried M. Greiner
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.