Hermetic fiber-optic seals and method of making them
CA 2412862 A1 · Owner: Moidu, Abdul Jaleel K. · Inventors: Yang, Guomao; Moore, William Thomas; Moidu, Abdul Jaleel K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a hermetic waveguide seal such as in an optical fiber , ribbon feedthrough or in an, optical fiber ferrule or feedthrough having an optical waveguide, a glass , solder for encasing at least a portion of the optical waveguide, a first glass sleeve for encasing at least a first portion of the glass solder, a second glass sleeve for encasing at least a second portion of the glass solder, and an outer sleeve for, encasing at least a portion of the first glass sleeve and the second glass sleeve. A gap filled with glass, solder may be provided between the first glass sleeve and the second glass sleeve to form a compressive, seal. The hermetic waveguide seal is made by …
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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 26, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 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.