Granted Patent
Utility
US 6,025,852 · App. 08/653,671
Manipulation of graphic structures
Inventor:
Jianmin ZHAO
Patented Case
View Patent ↗
Granted: Feb 15, 2000
Filed: May 24, 1996
Inventor
Jianmin ZHAO
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.