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Expired European patentEurope

A dental implement for removing plaque and massaging gums

EP 0052353 B1 · Applicant: AuBEX CORPORATION

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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 12, 1981 and granted May 13, 1987. A European patent lasts at most 20 years from filing, so its term ended November 12, 2001.
  • 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 12, 2007.
  • 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 12, 1981
PublishedMay 26, 1982
GrantedMay 13, 1987
Term endedNovember 12, 2001
Application numberEP 81109659
Classification (CPC)A46B3/00 +2 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedNov 12, 1981PublishedMay 26, 1982Patent grantedMay 13, 1987Term endedNov 12, 2001

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.