Optical device having a slant connecting end surface
CA 2195596 C · Owner: Seikoh Giken Co. Ltd. · Inventors: Takahashi, Mitsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical device having at least one slant optical connecting interface is disclosed. The optical device comprises a ferrule assembly, a GRIN rod lens assembly and a means for aligning the interface. The ferrule assembly comprises a pair of optical fibers with the distal ends thereof inserted symmetrically with respect to a reference line in a main body thereof, an aligning reference surface constituted by two surfaces which are provided on the outer periphery of the main body, and an end surface composed of the optical fibers and a main body end surface which have been polished to a slant surface. The GRIN rod lens assembly comprises of a GRIN rod lens, an aligning sleeve supporting the …
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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 January 21, 1997 and granted February 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2019.
- 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.