Granted Patent
Utility
US 4,449,145 · App. 06/493,129
Intelligent teletext decoder
Inventor:
Walter S. Ciciora
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Jun 13, 1983
Inventor
Walter S. Ciciora
Assignee (at issue)
Zenith Radio 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.