Fluid medication delivery device
CA 2538527 C · Owner: Kimberly-Clark Worldwide, Inc. · Inventors: Dine, Alan; Earhart, Donald M.; Porter, Bill
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid delivery device for transdermal delivery of a fluid to a patient. The device comprises an envelope that may be applied to a patient~s skin. The envelope comprises at least one diffusion layer (20) coupled to at least one impermeable layer (18) such that at least a chamber (22) is defined therebetween. Other embodiments include internal diffusion layers (42) and , thus possess additional chambers as well. In one arrangement, a boundary layer (200) permits the device to be removably secured to a patient and inhibits radial migration of fluid beyond the periphery of the device. In another arrangement, preferably, an anti-microbial layer (330) is provided to inhibit the growth …
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 September 16, 2004 and granted July 22, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 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.
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.