Expired European patentEurope
Method and device for elemental analysis of a sample by mass spectrometry coupled to a high frequency induced plasma
EP 0446080 B1 · Applicant: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
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.
Why it's free to use
- Filed January 2, 1991 and granted November 30, 1994. A European patent lasts at most 20 years from filing, so its term ended January 2, 2011.
- 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 2, 2016.
- 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 2, 1991
PublishedSeptember 11, 1991
GrantedNovember 30, 1994
Term endedJanuary 2, 2011
Application numberEP 91400001
Classification (CPC)H01J49/0468 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.