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Expired European patentEurope

Smoke generator carrying agricultural chemicals, and process for preparation thereof

EP 0715494 B1 · Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

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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 29, 1994 and granted April 14, 1999. A European patent lasts at most 20 years from filing, so its term ended July 29, 2014.
  • 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 January 29, 2020.
  • 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 29, 1994
PublishedJune 12, 1996
GrantedApril 14, 1999
Term endedJuly 29, 2014
Application numberEP 94922385
Classification (CPC)A01N25/20

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedJuly 29, 1994PublishedJune 12, 1996Patent grantedApril 14, 1999Term endedJuly 29, 2014

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.