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Expired European patentEurope

Ptc thermistor and method for manufacturing the same

EP 0955643 B1 · Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD

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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 December 25, 1997 and granted October 5, 2005. A European patent lasts at most 20 years from filing, so its term ended December 25, 2017.
  • 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 June 25, 2023.
  • 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.
FiledDecember 25, 1997
PublishedNovember 10, 1999
GrantedOctober 5, 2005
Term endedDecember 25, 2017
Application numberEP 97949236
Classification (CPC)H01C7/028

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedDec 25, 1997PublishedNov 10, 1999Patent grantedOct 5, 2005Term endedDec 25, 2017

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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