Granted Patent
Utility
US 5,231,493 · App. 07/467,727
Video receiver with permanent electronic program journal
Inventor:
Siegfried Apitz
Patented Case
View Patent ↗
Granted: Jul 27, 1993
Filed: Jan 18, 1990
Inventor
Siegfried Apitz
Assignee (at issue)
Nokia (Deutschland) GmbH
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.