Granted Patent
Utility
US 6,505,348 · App. 09/363,575
Multiple interactive electronic program guide system and methods
Inventors:
James Knowles, Kenneth D. Johnson, Gordon Chang
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Jul 29, 1999
Inventors
James Knowles
Kenneth D. Johnson
Gordon Chang
Assignee (at issue)
StarSight Telecast, Inc.
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.