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Expired European patentEurope

Method of making a power supply suljected to large overload and power supply made by this method

EP 0078089 B1 · Applicant: TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES T.R.T.

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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 October 27, 1982 and granted February 12, 1986. A European patent lasts at most 20 years from filing, so its term ended October 27, 2002.
  • 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 April 27, 2008.
  • 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.
FiledOctober 27, 1982
PublishedMay 4, 1983
GrantedFebruary 12, 1986
Term endedOctober 27, 2002
Application numberEP 82201340
Classification (CPC)H01C17/24 +1 more

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedOct 27, 1982PublishedMay 4, 1983Patent grantedFeb 12, 1986Term endedOct 27, 2002

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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