Expired European patentEurope
A process for combusting sulfur-containing material, a hydrocarbon conversion process including such a combustion process in a catalyst regeneration step and a composition suitable for use as a catalyst in the hydrocarbon conversion process
EP 0158858 B1 · Applicant: Katalistiks International, Incorporated
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
Read the whole patent
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 July 21, 1981 and granted October 16, 1991. A European patent lasts at most 20 years from filing, so its term ended July 21, 2001.
- 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 January 21, 2007.
- 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.
FiledJuly 21, 1981
PublishedOctober 23, 1985
GrantedOctober 16, 1991
Term endedJuly 21, 2001
Application numberEP 85103383
Classification (CPC)B01J21/005 +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.