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Expired European patentEurope

Purified natural glass product

EP 0874786 B1 · Applicant: Advanced Minerals Corporation

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Overview

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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.

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Why it's free to use

  • Filed January 14, 1997 and granted March 10, 1999. A European patent lasts at most 20 years from filing, so its term ended January 14, 2017.
  • 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 July 14, 2022.
  • 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.
FiledJanuary 14, 1997
PublishedNovember 4, 1998
GrantedMarch 10, 1999
Term endedJanuary 14, 2017
Application numberEP 97901446
Classification (CPC)C03C23/008 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJan 14, 1997PublishedNov 4, 1998Patent grantedMarch 10, 1999Term endedJan 14, 2017

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

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