Apparatus for housing a linearized optical fiber amplifier
CA 2196115 C · Owner: Robertson, Derek Guy · Inventors: Robertson, Derek Guy; Shute, Marcus W. Sr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to an apparatus for housing a linearized optical fiberamplifier (LOFA) circuit. The apparatus includes a body member preferably madeof foam plastic material that defines cavities to receive the components of the LOFA circuit including a dispersion compensation fiber (DCF) reel. The apparatus includes opposing arcuate members about which optical fibers coupling components of the LOFA circuit are looped. Retaining rings fitted over the first and second arcuate members and supported by at least one surface defined in the body member can beused to separate each optical fiber from others to provide organization and to prevent entanglement of the optical fibers. A reel …
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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 28, 1997 and granted October 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 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.