Granted Patent
Utility
US 6,097,818 · App. 08/888,074
Data copyright management method
Inventor:
Makoto Saito
Patented Case
View Patent ↗
Granted: Aug 1, 2000
Filed: Jul 3, 1997
Inventor
Makoto Saito
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.