Packaged optical device
CA 2193095 C · Owner: Payne, Roger Alyn · Inventors: Lealman, Ian Francis; Fiddyment, Philip John; Payne, Roger Alyn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical device package comprises an optical device (10) held in optically coupled relationship with an optical fibre (260) by a ceramic ferrule (60). The optical device (10) is mounted on heatsink (50) the heatsink being , mounted on the ferrule (60). The optical device (10) is accurately mounted in relation to the rim of the ferrule (60) such that insertion of the optical fibre (260) into the ferrule brings the optical fibre into optically coupled relationship with the optical device without the need for active alignment techniques. The optical device (10), in use is encapsulated in silicon , sealant (40) to seal the device from the effects of humidity.
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 June 29, 1995 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2017.
- 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.