Granted Patent
Utility
US 6,486,920 · App. 09/215,135
Method and apparatus for producing program information and receiving apparatus for processing the program information
Inventors:
Yuko Arai, Takeshi Nagao, Kenichi Fujita, Takayuki Suzuki
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Dec 18, 1998
Inventors
Yuko Arai
Takeshi Nagao
Kenichi Fujita
Takayuki Suzuki
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.