Granted Patent
Utility
US 6,574,366 · App. 09/448,135
Line and curve detection using local information
Inventor:
Zhigang Fan
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Nov 24, 1999
Inventor
Zhigang Fan
Assignee (at issue)
Xerox 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.