Expired European patentEurope
Process for adhesively binding a permeable layer to an interbond fibrous carrier, and the non-wovens for paper-making machines and filter tissues so produced
EP 0133836 B1 · Applicant: COFPA COMPAGNIE DES FEUTRES POUR PAPETERIES ET DES TISSUS INDUSTRIELS , Société Anonyme dite:
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 August 10, 1984 and granted October 21, 1987. A European patent lasts at most 20 years from filing, so its term ended August 10, 2004.
- 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 February 10, 2010.
- 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 10, 1984
PublishedMarch 6, 1985
GrantedOctober 21, 1987
Term endedAugust 10, 2004
Application numberEP 84401659
Classification (CPC)D21F7/083
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.