Granted Patent
Utility
US 5,809,170 · App. 08/604,037
Method for automatically recognizing line symmetry of a figure
Inventor:
Shigeru Saito
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Feb 20, 1996
Inventor
Shigeru Saito
Assignee (at issue)
NEC 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.