Convex pressure ring for use with an ostomy appliance
CA 2447613 C · Owner: Coloplast A/S · Inventors: Hagedorn-Olsen, Lars
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ring-shaped member having a proximal side having a convex face for use together with ostomy appliance which ring-shaped member is made from light and flexible material wherein the ring-shaped member is made from a) a solid thermoplastic elastomer such as a polyolefin elastomer in the form of a copolymer of ethylene and octene, or b) a foamed thermoplastic elastomer in the form of a moulded foam product or an integral foam combines low weight with flexibility and is, at the same time sufficiently stiff to provide and , hold the convex shape of an adhesive wafer of an ostomy appliance.
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 May 21, 2002 and granted February 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2024.
- 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.