Granted Patent
Utility
US 6,421,067 · App. 09/488,361
Electronic programming guide
Inventors:
Yakov Kamen, Leon Shirman
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Jan 16, 2000
Inventors
Yakov Kamen
Leon Shirman
Assignee (at issue)
ISURFTV
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.