Granted Patent
Utility
US 4,544,946 · App. 06/487,383
Vertical color shift correction in a rear projection television screen
Inventor:
Bertram VanBreemen
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Apr 21, 1983
Inventor
Bertram VanBreemen
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.