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Expired European patentEurope

Dicharge channel for transverse flow high power laser

EP 0525823 B1 · Applicant: DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V.

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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 16, 1988 and granted February 15, 1995. A European patent lasts at most 20 years from filing, so its term ended September 16, 2008.
  • 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 16, 2014.
  • 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 16, 1988
PublishedFebruary 3, 1993
GrantedFebruary 15, 1995
Term endedSeptember 16, 2008
Application numberEP 92115015
Classification (CPC)H01S3/03 +2 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedSep 16, 1988PublishedFeb 3, 1993Patent grantedFeb 15, 1995Term endedSep 16, 2008

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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