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Expired European patentEurope

Carbon molecular sieves and a process for their preparation

EP 0102902 B1 · Applicant: CALGON CARBON CORPORATION

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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 August 31, 1983 and granted October 21, 1987. A European patent lasts at most 20 years from filing, so its term ended August 31, 2003.
  • 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 3, 2009.
  • 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.
FiledAugust 31, 1983
PublishedMarch 14, 1984
GrantedOctober 21, 1987
Term endedAugust 31, 2003
Application numberEP 83401729
Classification (CPC)C01B32/306

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedAug 31, 1983PublishedMarch 14, 1984Patent grantedOct 21, 1987Term endedAug 31, 2003

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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