Research/Patents/US 5245352
US 5245352Tier 1 — UAP Program Assignee

THRESHOLD SENSITIVE LOW VISIBILITY REFLECTING SURFACE

Assignee

Boeing

Filed as: BOEING COMPANY, THE

Filed

Sep 30, 1982

Granted

Sep 14, 1993

Location

BELLEVUE WA US

Abstract

A non-linear solid state conductor placed across a resonant aperture formed in a surface reflective of electromagnetic energy becomes conductive under the influence of a microwave field above a threshhold energy level of intensity to render the resonant aperture fully reflecting for the bandwidth of frequencies associated with the geometry of the resonant aperture.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Aug 3, 1984

Rescinded

Oct 26, 1992

Duration

8 years, 2 months

Inventor

  • 1ERVIN J. NALOS

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