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Expired Canadian patentCanada

Method for manufacturing microstructures having hollow microelements using fluidic jets during a molding operation

CA 2528309 C · Owner: Corium International Inc. · Inventors: Sherman, Faiz Feisal; Gartstein, Vladimir

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method is provided for constructing microstructures that can penetrate skin layers, in which the microelements are formed during a molding process while fluidic jets produce openings in the microelements. The structures used in the molding process are formed by tooling that creates the shapes of the microelements in a material deposition step and also creates the sizes and , shapes of the openings that will be formed by the fluidic jets.

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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 June 2, 2004 and granted March 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 2, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 2, 2004
GrantedMarch 6, 2012
Term endedJune 2, 2024
Patent numberCA 2528309 C
Classification (IPC)B26F1/26 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 2, 2004Patent grantedMarch 6, 2012Term endedJune 2, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.