Laser ablation of waveguide structures
CA 2361952 A1 · Owner: Aslund, Mattias · Inventors: Aslund, Mattias; Canning, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of processing an optical device incorporating a waveguide the method , comprising the step of utilizing a laser to heat a surface of the device to alter an optical characteristic of the waveguide wherein the power density of , the laser is selected to effect ablation.
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 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2022.
- 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.