Expired European patentEurope
Method and membrane for the removal of water vapour from a gas/vapour mixture by means of vapour permeation
EP 0308002 B1 · Applicant: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
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 September 5, 1988 and granted April 15, 1992. A European patent lasts at most 20 years from filing, so its term ended September 5, 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 5, 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 5, 1988
PublishedMarch 22, 1989
GrantedApril 15, 1992
Term endedSeptember 5, 2008
Application numberEP 88201908
Classification (CPC)B01D67/0088 +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.