Granted Patent
Utility
US 4,587,487 · App. 06/474,148
Optical fiber magnetometer for measuring D.C. and low frequency fields
Inventor:
Paul Zanzucchi
Patented Case
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Granted: May 6, 1986
Filed: Mar 10, 1983
Inventor
Paul Zanzucchi
Assignee (at issue)
Gould Inc.
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.