Medicament-loaded transdermal reservoir and method for its formation
CA 2410675 C · Owner: Bernhard, Michael I. · Inventors: Ewall, Ralph; Karl, Curtis; Keusch, Preston
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transdermal reservoir (10) and a method for loading a material includes providing a reservoir including a backing (12) with an interior surface (14) comprising a bibulous reservoir (18) having a patient contact surface (20) disposed on the interior surface (14). The method includes providing a closure (24) sized to engage the backing (12) to form a releasable seal to isolate the bibulous reservoir (18) from the ambient environment. The closure (24) has an inside surface (28) with an absorbent material disposed thereon such that the absorbent material is positioned in intimate contact with the bilulous reservoir (18) when the closure (24) engages the backing (12). The method …
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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 30, 2001 and granted February 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 2023.
- 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.