Patent Yard Sign in
Expired European patentEurope

Plastic bag with venting perforations, closed plastic bag with venting perforations containing filler material and a plastic foil for forming such a bag

EP 0155035 B1 · Applicant: WAVIN B.V.

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 February 22, 1985 and granted August 17, 1988. A European patent lasts at most 20 years from filing, so its term ended February 22, 2005.
  • 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 August 22, 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.
FiledFebruary 22, 1985
PublishedSeptember 18, 1985
GrantedAugust 17, 1988
Term endedFebruary 22, 2005
Application numberEP 85200235
Classification (CPC)B65D33/01 +1 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedFeb 22, 1985PublishedSep 18, 1985Patent grantedAug 17, 1988Term endedFeb 22, 2005

Sources & verification