Patent Yard Sign in
Expired European patentEurope

Gas/air ratio control apparatus for a temperature control loop for gas appliances

EP 0626541 B1 · Applicant: RANCO INCORPORATED OF DELAWARE

EPO PDF

Overview

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

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed May 27, 1994 and granted January 7, 1999. A European patent lasts at most 20 years from filing, so its term ended May 27, 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 November 27, 2019.
  • 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 27, 1994
PublishedNovember 30, 1994
GrantedJanuary 7, 1999
Term endedMay 27, 2014
Application numberEP 94108252
Classification (CPC)F23N1/027

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedMay 27, 1994PublishedNov 30, 1994Patent grantedJan 7, 1999Term endedMay 27, 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.