Method of fabrication of a microfluidic device
CA 2428980 A1 · Owner: Van Den Berg, Albert · Inventors: Gardeniers, Johannes Gerardus Elisabeth; Van Den Berg, Albert; Schlautmann, Stefan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method of fabricating a microfluidic device including at least two substrates provided with a fluid channel, comprising tho steps of: a) etching at least a channel and one or more fluid ports in a first and/or a second substrate; b) depositing a first layer on a surface of the second substrate;, c) partially removing the first layer in accordance with a predefined geometry;, d) depositing a second layer on top of the first layer and the substrate surface;, e) planarizing the second layer so as to smooth the upper surface thereof;, f) aligning the first end second substrate; g) bonding the first substrate on the planarized second layer of the second …
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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 May 16, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 16, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 2025.
- 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.