Continuous carbon steel inert gas welding wire electrode, which surface has been coated with an alloying metal, other than copper for the purpose of changing the composition in the finished weld metal composition
CA 2073165 A1 · Owner: Svensson, Ulf G. · Inventors: Svensson, Ulf G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
IT IS KNOWN THAT CERTAIN ALLOY METALS SUCH AS MANGANESE (Mn) MOLYBDENUM (Mo), CHROMIUM (Cr), NICKEL (Ni) NIOBIUM (Nb), TITANIUM (Ti), ZIRCONIUM (Zr) AND ALUMINUM (Al) CHANGES THE WELDING PROPERTIES OF A CARBON STEEL WELDING WIRE ELECTRODE TO BETTER SUIT CERTAIN MATERIALS TO BE WELDED OR TO ENHANCE THE WELDING PROCESS AND THE RATE AND THE UNIFORMITY BY WHICH THE DEPOSIT PROCESS OF THE FILTER METAL TAKES PLACE DURING WELDING. IT IS THEREFORE COMMON TO USE THESE ALLOY METALS AS ADDITIVES WHEN THE STEEL IS MADE AND HAVE THEM CONTAINED IN THE STEEL AS AN ALLOY IN THE HEAT FROM WHICH BILLETS ARE CAST AND CONTAINED IN THE CARBON STEEL AS THE BILLET IS ROLLED TO WIRE ROD AND WATER OLD DRAWN TO …
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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
- Filed July 3, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.