Granted Patent
Utility
US 6,539,378 · App. 10/000,235
Method for creating an information closure model
Inventors:
Ashish Gupta, Peter Norvig, Anand Rajaraman
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Nov 30, 2001
Inventors
Ashish Gupta
Peter Norvig
Anand Rajaraman
Assignee (at issue)
Amazon.com, 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.