Research/Patents/US 8111584
US 8111584

OPTICAL SENSING ARRANGEMENTS

Assignee

PLESSEY OVERSEAS LIMITED, ILFORD, ESSEX, ENGLAND

Filed

Jun 11, 1987

Granted

Feb 7, 2012

Location

SOMERSET EN GB

35 USC §181 Secrecy Order

Imposed

Jan 18, 1989

Rescinded

Aug 11, 2011

Duration

22 years, 7 months

Inventor

  • 1ROBERT J. LANGSTON

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