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Expired European patentEurope

Method of making a thin-film photovoltaic cell and photovoltaic cell made by this method

EP 0010359 B1 · Applicant: UNIVERSITY OF DELAWARE

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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 19, 1979 and granted February 20, 1985. A European patent lasts at most 20 years from filing, so its term ended September 19, 1999.
  • 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 19, 2005.
  • 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 19, 1979
PublishedApril 30, 1980
GrantedFebruary 20, 1985
Term endedSeptember 19, 1999
Application numberEP 79301945
Classification (CPC)H10F71/00 +2 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedSep 19, 1979PublishedApril 30, 1980Patent grantedFeb 20, 1985Term endedSep 19, 1999

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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