Wavelength selective cross-connect switch using a mems shutter array
CA 2393477 A1 · Owner: Corning Incorporated · Inventors: Lindquist, Robert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wavelength selective cross-connect switch for selectively switching wavelength-separated input channels between two optical input signals. The cross-connect switch includes two dispersive elements where each dispersive , element receives an optical input signal and disperses it into a plurality of wavelength-separated input channels. The cross-connect switch also includes a switching array mechanism, such as a micro-electro mechanical system (MEMS) shutter array, receiving the plurality of wavelength-separated input channels from each of the dispersive elements and operative for selectively switching one or more of the wavelength-separated input channels between the optical …
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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 November 30, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 30, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2022.
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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.