Expired European patentEurope
Method for the preparation and application of rhodium catalysts for the hydrogenation of aromatic and other unsaturated compounds under mild conditions.
EP 0289061 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 March 10, 1988 and granted August 1, 1990. A European patent lasts at most 20 years from filing, so its term ended March 10, 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 September 10, 2013.
- 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.
FiledMarch 10, 1988
PublishedNovember 2, 1988
GrantedAugust 1, 1990
Term endedMarch 10, 2008
Application numberEP 88200457
Classification (CPC)C07C5/03 +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.