Research/Patents/US 5990822
US 5990822

PROCESS AND APPARATUS FOR FINDING STEALTHCRAFT

Assignee

Filed

Jun 11, 1991

Granted

Nov 23, 1999

Location

PASSAIC NJ US

Abstract

Stealthcraft are detected by illuminating backgrounds with narrow radar or sonar beams and monitoring this background illumination for the changes that result when these beams are absorbed by such targets, and are ranged by triangulation using two such beams.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Feb 25, 1992

Rescinded

Jan 18, 1995

Duration

2 years, 10 months

Inventor

  • 1RICHARD F. HONIGSBAUM

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