Granted Patent
Utility
US 6,128,605 · App. 08/882,909
Apparatus for data copyright management system
Inventors:
Makoto Saito, Shunichi Momiki
Patented Case
View Patent ↗
Granted: Oct 3, 2000
Filed: Jun 26, 1997
Inventors
Makoto Saito
Shunichi Momiki
Assignee (at issue)
MITSUBISHI CORPORATION
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.