Optical fiber passive alignment apparatus using alignment platform
CA 2244496 C · Owner: Lee, Hyung-Jae · Inventors: Lee, Yong-Woo; You, Byong-Gwon; Lee, Hyung-Jae
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical fiber passive alignment apparatus for passively aligning optical fibers with input/output optical waveguides of an integrated optical device. Theoptical fiber passive alignment apparatus includes: an optical fiber array block on which the optical fibers are mounted with a predetermined spacing having, alignment grooves formed parallel to the optical fibers at a predetermined, spacing, and an optical fiber fixing plate for fixing the mounted optical fibers to a substrate; an optical waveguide device chip having an input/output optical waveguide array consisting of optical waveguides corresponding to the optical fibers, to be coupled with the optical fibers and alignment holes; and …
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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 July 29, 1998 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 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.
Timeline
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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.