Granted Patent
Utility
US 4,416,521 · App. 06/267,749
System and method for determining the light transmission characteristics of color picture tube shadow masks
Inventors:
Ernesto J. Alvero, William R. Kelly
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: May 28, 1981
Inventors
Ernesto J. Alvero
William R. Kelly
Assignee (at issue)
RCA Corporation
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.