Research/Patents/US 5638076
US 5638076

Assignee

Filed

Sep 29, 1966

Granted

Jun 10, 1997

Location

RIVERSIDE CA US

Abstract

A target detecting device having a plurality of gate circuits for detectinghe presence of sea return signals and reducing the effective target detecting range to a range less than the range to the sea surface which permits the detecting of true target signals.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 28, 1982

Rescinded

Feb 12, 1996

Duration

14 years

Inventor

  • 1NOEL D. GRAVELLE

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