A fibre aligning structure
CA 2363058 A1 · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Vieider, Christian; Holm, Johan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a device for passively aligning at least one substrate-carried optical fibre with at least one optical device. The substrate is patterned with a buried etching stop layer. The substrate is then etched to provide a pattern of U-grooves whose depths correspond to the thicknes of material that overlies the etching stop layer and whose positions on the substrate are aligned relative to the optical device. The optic fibre is disposed and fixed in the U-groove. The invention also relates to a device produced by means of said method.
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 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 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.