Patent Yard Sign in
Expired European patentEurope

Process for the preparation of vinyl-chloride polymers and copolymers by suspension polymerisation, and their use in lowering the viscosity of plastisols

EP 0072900 B1 · Applicant: HÜLS AKTIENGESELLSCHAFT

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 June 24, 1982 and granted September 3, 1986. A European patent lasts at most 20 years from filing, so its term ended June 24, 2002.
  • 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 December 24, 2007.
  • 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.
FiledJune 24, 1982
PublishedMarch 2, 1983
GrantedSeptember 3, 1986
Term endedJune 24, 2002
Application numberEP 82105564
Classification (CPC)C08F255/026 +1 more

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedJune 24, 1982PublishedMarch 2, 1983Patent grantedSep 3, 1986Term endedJune 24, 2002

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.