Granted Patent
Utility
US 5,438,355 · App. 08/047,445
Interactive system for processing viewer responses to television programming
Inventor:
Shelton L. Palmer
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Apr 16, 1993
Inventor
Shelton L. Palmer
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.