Granted Patent
Utility
US 6,463,214 · App. 09/897,950
Multi-point autofocus system
Inventor:
Masahiro Nakata
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Jul 5, 2001
Inventor
Masahiro Nakata
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.