Granted Patent
Utility
US 5,457,513 · App. 08/262,341
Automatic focusing device
Inventor:
Yukio Uenaka
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Jun 17, 1994
Inventor
Yukio Uenaka
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.