Granted Patent
Utility
US 6,591,367 · App. 09/281,894
Method and apparatus for preventing unauthorized copying and distributing of electronic messages transmitted over a network
Inventors:
Hiroshi Kobata, Robert Gagne
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Mar 31, 1999
Inventors
Hiroshi Kobata
Robert Gagne
Assignee (at issue)
Atabok Japan, 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.