Granted Patent
Utility
US 4,750,013 · App. 07/083,844
Automatic focus adjustment camera
Inventor:
Seiichi Yasukawa
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: Aug 10, 1987
Inventor
Seiichi Yasukawa
Assignee (at issue)
Nippon Kogaku K.K.
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.