Granted Patent
Utility
US 4,531,060 · App. 06/422,007
Positioning method
Inventors:
Kyoichi Suwa, Kazuo Kuramochi, Kiwao Nakazawa
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Sep 23, 1982
Inventors
Kyoichi Suwa
Kazuo Kuramochi
Kiwao Nakazawa
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.