Patent Yard Sign in
Expired European patentEurope

Aldehyde modified cellulose pulp for the preparation of high strength paper products

EP 1077286 B1 · Applicant: National Starch and Chemical Investment Holding Corporation

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 August 17, 2000 and granted December 21, 2005. A European patent lasts at most 20 years from filing, so its term ended August 17, 2020.
  • 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 17, 2026.
  • 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 17, 2000
PublishedFebruary 21, 2001
GrantedDecember 21, 2005
Term endedAugust 17, 2020
Application numberEP 00117283
Classification (CPC)C08B31/18 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedAug 17, 2000PublishedFeb 21, 2001Patent grantedDec 21, 2005Term endedAug 17, 2020

Sources & verification