Patent Yard Sign in
Expired Canadian patentCanada

Method of electroslag welding and flux therefor

CA 1191078 A · Owner: Institut Elektrosvarki Imeni E.O. Patona Akademii Nauk Ukrainskoi Ssr · Inventors: Antonov, Anatoly V.; Safonnikov, Anatoly N.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A flux for electroslag welding contains calcium fluoride, calcium oxide, and calcium chloride the ratio between the calcium fluoride and the calcium oxide being 3:1. A flux makes it possible to obtain a high quality weld with welding ingots having large thicknesses.

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted July 30, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 30, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 24, 1981
GrantedJuly 30, 1985
Term endedJuly 30, 2002
Patent numberCA 1191078 A
Classification (IPC)B23K35/36

Timeline

Timeline From CIPO dates

1982198519881991199419972000Application filedSep 24, 1981Patent grantedJuly 30, 1985Term endedJuly 30, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.