Welding wire and method of making same
CA 2262148 A1 · Owner: Lincoln Global, Inc. · Inventors: Enyedy, Edward A.; Blankenship, George D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A welding wire for use in electric arc welding and method of making same wherein the wire, has an effective outer diameter and comprises a length of solid metal formed into a series of distinct, segments each having a selected volume and joined together by interconnecting bridging elements, with the cross sectional area of the solid metal at said segments being greater than the cross sectional, area of the solid metal at the bridging elements.
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
- Filed February 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 17, 2021.
- 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.