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European application, no grantEurope

Circuit arrangement for charging a battery with current from solar cells

EP 0116331 A2 · Applicant: SIEMENS AKTIENGESELLSCHAFT

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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 January 30, 1984 and never granted as a European patent. Had it been granted, its 20-year term would have ended January 30, 2004.
  • 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 July 30, 2009.
  • 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.
FiledJanuary 30, 1984
PublishedAugust 22, 1984
GrantedNever granted
Term endedJanuary 30, 2004
Application numberEP 84100924
Classification (CPC)H01M10/44 +1 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedJan 30, 1984PublishedAug 22, 1984Term endedJan 30, 2004

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.