Granted Patent
Utility
US 4,828,385 · App. 07/029,728
Autolensmeter
Inventors:
Yasufumi Fukuma, Akihiro Arai
Patented Case
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Granted: May 9, 1989
Filed: Mar 24, 1987
Inventors
Yasufumi Fukuma
Akihiro Arai
Assignee (at issue)
Tokyo Kogaku Kikai 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.