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Expired European patentEurope

Air conditioning system for a closed space

EP 0005259 B1 · Applicant: Eltreva AG

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 2, 1979 and granted October 21, 1981. A European patent lasts at most 20 years from filing, so its term ended May 2, 1999.
  • 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 November 2, 2004.
  • 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 2, 1979
PublishedNovember 14, 1979
GrantedOctober 21, 1981
Term endedMay 2, 1999
Application numberEP 79101318
Classification (CPC)E06B7/02 +2 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedMay 2, 1979PublishedNov 14, 1979Patent grantedOct 21, 1981Term endedMay 2, 1999

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.