Granted Patent
Utility
US 6,230,324 · App. 08/840,155
Device for transmitting broadcast-program information and allowing other information sources to be accessed
Inventors:
Yasumasa Tomita, Shigeru Oizumi
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Apr 11, 1997
Inventors
Yasumasa Tomita
Shigeru Oizumi
Assignee (at issue)
Fujitsu Limited
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.