Patent Yard Sign in
Expired European patentEurope

Process for removal of low molecular weight fractions from vinyl pyridine polymers and copolymers

EP 0176642 B1 · Applicant: EASTMAN KODAK COMPANY (a New Jersey 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.

Google PatentsEPO PDF

Why it's free to use

  • Filed September 27, 1984 and granted November 17, 1988. A European patent lasts at most 20 years from filing, so its term ended September 27, 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 March 27, 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.
FiledSeptember 27, 1984
PublishedApril 9, 1986
GrantedNovember 17, 1988
Term endedSeptember 27, 2004
Application numberEP 84401929
Classification (CPC)C08F6/04

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedSep 27, 1984PublishedApril 9, 1986Patent grantedNov 17, 1988Term endedSep 27, 2004

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.