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Expired European patentEurope

Fumigation methods and compositions

EP 0141844 B1 · Applicant: UNION OIL COMPANY OF CALIFORNIA

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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 April 30, 1984 and granted January 3, 1990. A European patent lasts at most 20 years from filing, so its term ended April 30, 2004.
  • 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 October 30, 2009.
  • 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.
FiledApril 30, 1984
PublishedMay 22, 1985
GrantedJanuary 3, 1990
Term endedApril 30, 2004
Application numberEP 84901919
Classification (CPC)A01N25/18 +2 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedApril 30, 1984PublishedMay 22, 1985Patent grantedJan 3, 1990Term endedApril 30, 2004

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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