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Expired European patentEurope

Package of resealable plastic bags

EP 0177555 B1 · Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 March 14, 1985 and granted January 11, 1989. A European patent lasts at most 20 years from filing, so its term ended March 14, 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 September 14, 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.
FiledMarch 14, 1985
PublishedApril 16, 1986
GrantedJanuary 11, 1989
Term endedMarch 14, 2005
Application numberEP 85901741
Classification (CPC)B65D33/001 +1 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedMarch 14, 1985PublishedApril 16, 1986Patent grantedJan 11, 1989Term endedMarch 14, 2005

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