Method and apparatus for the continuous manufacture of fiber-optic cable
CA 2255799 A1 · Owner: Puhakka, Timo · Inventors: Puhakka, Timo; Suvanto, Markku T.; Karvonen, Leevi
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 method and apparatus for continuous manufacture of a fiber-optic cable (15). According to the method single , optical fibers (2) of certain length are formed into a fiber-optic cable (15) enclosed by a secondary sheath (16). According to the invention a certain , length of the optical fibers (2) is accumulated into an active buffer (5) and , the end of an exhausting fiber (2) is connected by a splice to the end of a new fiber (2), while the fiber (2) is being fed into the process during the splicing operation from the buffer (5).
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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 May 16, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 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.