Granted Patent
Utility
US 5,983,232 · App. 09/162,186
Virtual structured information system
Inventor:
Tao Zhang
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Sep 28, 1998
Inventor
Tao Zhang
Assignee (at issue)
Triada, Ltd.
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.