Laser apparatus for material processing
CA 2522800 C · Owner: Spi Lasers Uk Limited · Inventors: Woods, Stuart Wayne; Varnham, Malcolm Paul; Appleyard, Andrew Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for material processing, which apparatus comprises a rare-earth doped fibre (1), a laser diode source (2) a short pulse laser (18) and a , controller (9) wherein the rare-earth doped fibre (1) is pumped by the laser diode source (2) to provide optical radiation (10) and the optical radiation , (10) emitted by the rare-earth doped fibre (1) is combined with optical radiation (11) emitted by the short pulse laser (18) the apparatus being , characterised in that the controller (9) synchronizes the optical radiation (10) emitted from the rare-earth doped fibre (1) with the optical radiation (11) emitted by the short pulse laser (18) to provide a plurality of pulses (5) …
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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 April 29, 2004 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2026.
- 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.