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Expired European patentEurope

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EP 0444073 B1 · Applicant: SCA Pulp Aktiebolag

EPO PDF

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 October 30, 1989 and granted June 2, 1993. A European patent lasts at most 20 years from filing, so its term ended October 30, 2009.
  • 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 April 30, 2015.
  • 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.
FiledOctober 30, 1989
PublishedSeptember 4, 1991
GrantedJune 2, 1993
Term endedOctober 30, 2009
Application numberEP 89912520
Classification (CPC)D21H11/02 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedOct 30, 1989PublishedSep 4, 1991Patent grantedJune 2, 1993Term endedOct 30, 2009

Sources & verification