Granted Patent
Utility
US 5,241,168 · App. 07/904,950
Focus detecting apparatus with selectively positioned deflecting component
Inventor:
Takayuki Sensui
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Jun 26, 1992
Inventor
Takayuki Sensui
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.