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Expired European patentEurope

Apparatus for improving R.F. isolation between adjacent microstrip antenna arrays

EP 0001883 B1 · Applicant: BALL CORPORATION

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Overview

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed September 22, 1978 and granted December 27, 1985. A European patent lasts at most 20 years from filing, so its term ended September 22, 1998.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by March 22, 2004.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledSeptember 22, 1978
PublishedMay 16, 1979
GrantedDecember 27, 1985
Term endedSeptember 22, 1998
Application numberEP 78300410
Classification (CPC)H01Q21/29 +2 more

Timeline

Timeline From EPO dates

1979198119831985198719891991199319951997Application filedSep 22, 1978PublishedMay 16, 1979Patent grantedDec 27, 1985Term endedSep 22, 1998

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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