Granted Patent
Utility
US 6,717,547 · App. 10/232,142
Position location using broadcast television signals and mobile telephone signals
Inventors:
James J. Spilker, Jr., Jimmy K. Omura, Matthew Rabinowitz
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Aug 29, 2002
Inventors
James J. Spilker, Jr.
Jimmy K. Omura
Matthew Rabinowitz
Assignee (at issue)
Rosum Corporation
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.