Research/Patents/US 4721961
US 4721961

SUBMARINE DETECTION SYSTEM

Assignee

ITT CORPORATION

Filed

Nov 3, 1959

Granted

Jan 26, 1988

Location

NEW YORK NEW YORK 10022

Abstract

This invention relates to a system for detecting submerged objects by receiving an incident indication of electromagnetic energy and also the reflection of said energy caused by the presence of a submerged object and to comapre the field strength of the incident radiation with the field strength of the reflected radiation to determine the relation therebetween, the relation being a measure of the object location.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 3, 1982

Rescinded

May 29, 1987

Duration

5 years, 2 months

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records