Granted Patent
Utility
US 4,631,441 · App. 06/711,723
Color picture tube having improved line screen
Inventors:
Albert M. Morrell, Walter D. Masterton
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Mar 14, 1985
Inventors
Albert M. Morrell
Walter D. Masterton
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.