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Expired European patentEurope

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EP 0333722 B1 · Applicant: DRG (UK) LIMITED

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 November 13, 1987 and granted March 10, 1993. A European patent lasts at most 20 years from filing, so its term ended November 13, 2007.
  • 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 May 13, 2013.
  • 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.
FiledNovember 13, 1987
PublishedSeptember 27, 1989
GrantedMarch 10, 1993
Term endedNovember 13, 2007
Application numberEP 87907251
Classification (CPC)H05K3/0076 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedNov 13, 1987PublishedSep 27, 1989Patent grantedMarch 10, 1993Term endedNov 13, 2007

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.