Granted Patent
Utility
US 6,804,462 · App. 10/412,678
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Inventors:
Yasuzi Ogata, Tomoyuki Satori
Patented Case
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Granted: Oct 12, 2004
Filed: Apr 14, 2003
Inventors
Yasuzi Ogata
Tomoyuki Satori
Assignee (at issue)
OLYMPUS CORPORATION
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.