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Canadian application, no grantCanada

Method of laser welding tailored blanks

CA 2242139 A1 · Owner: Automated Welding Systems Incorporated · Inventors: Xiao, Min

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A method laser welding apparatus for use in industrial processing which is , operable to, emit laser energy to weld blanks and the like together along a seamline. The emitted, laser energy comprises either a single or a multiple beam of two or more coherent light, sources. The apparatus is adapted to selectively reposition the orientation on the, multiple beam relative to the seamline to achieve maximum weld efficiency having, regard to any gaps between the abutting portions of the workpieces to be joined or the, relative thicknesses of the sheet blanks to be joined.

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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 June 29, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 29, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 29, 1998
GrantedNo grant recorded
Term endedJune 29, 2018
Patent numberCA 2242139 A1
Classification (IPC)B23K26/26 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 29, 1998Term endedJune 29, 2018

Sources & verification

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