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European application, no grantEurope

Method and heat exchanger for directing a heating medium into a sorption heat pump

EP 0028343 A2 · Applicant: Ruhrgas Aktiengesellschaft

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Overview

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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 October 20, 1980 and never granted as a European patent. Had it been granted, its 20-year term would have ended October 20, 2000.
  • 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 April 20, 2006.
  • 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.
FiledOctober 20, 1980
PublishedMay 13, 1981
GrantedNever granted
Term endedOctober 20, 2000
Application numberEP 80106362
Classification (CPC)F25B30/04

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedOct 20, 1980PublishedMay 13, 1981Term endedOct 20, 2000

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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