Granted Patent
Utility
US 5,605,486 · App. 08/584,519
Three-dimensional model structures
Inventor:
Yu Zheng
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Jan 11, 1996
Inventor
Yu Zheng
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.