Method and apparatus for heating fusion spliced portion of optical fibers and optical fiber array
CA 2570905 A1 · Owner: Tamura, Mitsuaki · Inventors: Tamura, Mitsuaki; Yamada, Eiichiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vicinity of the fusion spliced portion of optical fibers is mounted on a heating board after the dissimilar optical fibers having the different mode field diameters are fusion spliced. The vicinity of the fusion spliced portion of the optical fibers is then heated by a heat source via the heating board.
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 July 25, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2024.
- 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.