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Improvement to mixture of refrigerant gases based on hydrocarbons in order to obtain greater efficiency in air conditioning and refrigeration compression systems

EP 1826258 A1 · Applicant: Ochoa Vivanco, Ruben Dario

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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 May 4, 2005 and never granted as a European patent. Had it been granted, its 20-year term would have ended May 4, 2025.
  • 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.
FiledMay 4, 2005
PublishedAugust 29, 2007
GrantedNever granted
Term endedMay 4, 2025
Application numberEP 05744865
Classification (CPC)C09K5/042

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedMay 4, 2005PublishedAug 29, 2007Term endedMay 4, 2025

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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