Granted Patent
Utility
US 5,907,793 · App. 08/510,900
Telephone-based interactive broadcast or cable radio or television methods and apparatus
Inventor:
David A. Reams
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Aug 3, 1995
Inventor
David A. Reams
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.