Bubbler for constant vapor delivery of a solid chemical
CA 2566944 C · Owner: Akzo Nobel Chemicals International B.V. · Inventors: Deavenport, Dennis Leon; Tran, Nam Hung; Ko, Taeho
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bubbler chamber assembly comprising one chamber or two or more chambers connected in series, all chambers being in substantially vertical orientation. A solid or liquid source of the compound is contained in the chamber or chambers. The ratio between the length of the chamber or combined length of chambers connected in series with respect to the direction of flow of the carrier gas through the chamber or chambers and the average diameter equivalent of the cross section of the chamber or chambers with respect to the direction of flow of the carrier gas through the chamber or chambers is not less than about 6:1.
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 May 17, 2005 and granted October 11, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.