Research/Patents/US 4864321
US 4864321

ELECTROMAGNETIC ENERGY SHIELD

Assignee

RADANT SYSTEMS INC.

Filed

Aug 20, 1984

Granted

Sep 5, 1989

Location

BOSTON MA US

Abstract

A structure for transmitting electromagnetic energy within a selected frequency range and preventing such transmission outside such range in which an insulative member has a metallized surface which includes an array of non-metallized regions each having the shape of a Jerusalem cross, the vertical and horizontal cross arms thereof having metallized regions along their length to form non-metallized gaps with the edges thereof.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Feb 20, 1986

Rescinded

Feb 3, 1989

Duration

2 years, 11 months

Inventor

  • 1JEAN-CLAUDE SUREAU

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