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Expired European patentEurope

Oxygen absorbent composition absorbing water vapor

EP 1177985 B1 · Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.

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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 July 24, 2001 and granted December 8, 2004. A European patent lasts at most 20 years from filing, so its term ended July 24, 2021.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledJuly 24, 2001
PublishedFebruary 6, 2002
GrantedDecember 8, 2004
Term endedJuly 24, 2021
Application numberEP 01117631
Classification (CPC)A23B2/717

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedJuly 24, 2001PublishedFeb 6, 2002Patent grantedDec 8, 2004Term endedJuly 24, 2021

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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