Granted Patent
Utility
US 4,690,565 · App. 06/711,163
Optical apparatus for the detection of scattered light
Inventors:
Kinya Kato, Hiroyuki Tsuchiya
Patented Case
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Granted: Sep 1, 1987
Filed: Mar 13, 1985
Inventors
Kinya Kato
Hiroyuki Tsuchiya
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.