Granted Patent
Utility
US 6,571,392 · App. 09/295,436
Receiving an information resource from the internet if it is not received from a broadcast channel
Inventors:
Daniel J. Zigmond, Dean J. Blackketter
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Apr 20, 1999
Inventors
Daniel J. Zigmond
Dean J. Blackketter
Assignee (at issue)
WebTV Networks, Inc.
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.