Apparatus and method for fabricating needles via conformal deposition in two-piece molds
CA 2323969 A1 · Owner: Pisano, Albert P. · Inventors: Pisano, Albert P.; Keller, Christopher G.; Talbot, Neil H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of fabricating a needle via conformal deposition in a two-piece mold includes the step of attaching a top mold member (20) to a bottom mold member (30) such that the top mold member and the bottom mold member define an enclosed, elongated needle trench (34) with a deposition aperture (24 26). A , conformal substance, such as polysilicon (50) is then passed through the , deposition aperture such that the conformal substance is deposited within the enclosed, elongated needle trench (34) to form a needle (60). The method is used to form needles with prongs, multiple channels multiple ports, barbs, strength enhancement features and circuitry.
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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 March 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2021.
- 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.