Granted Patent
Utility
US 4,390,252 · App. 06/171,003
Gauss type photographic lens
Inventor:
Ikuo Mori
Patented Case
View Patent ↗
Granted: Jun 28, 1983
Filed: Jul 18, 1980
Inventor
Ikuo Mori
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.