Granted Patent
Utility
US 5,625,497 · App. 08/350,466
Retrofocus type standard lens and wide angle lens
Inventor:
Takashi Emomoto
Patented Case
View Patent ↗
Granted: Apr 29, 1997
Filed: Dec 7, 1994
Inventor
Takashi Emomoto
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.