Improvements relating to ostomy pouches
CA 2280107 C · Owner: Bristol-Myers Squibb Company · Inventors: Falconer, Malcolm Ian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ostomy pouch (10) includes a front wall (12) provided with a comfort layer (16) and a vent (22). An apertured cover layer (24) is secured to the front wall (12) , through the comfort layer (16) to define a chamber for a filter element (28) and to , provide a smooth surface to which can be applied an adhesive sticker. The cover layer , (24) includes a plurality of apertures (30) and the flow rate through the , vent can be controlled by positioning the sticker to selectively block one or more of the apertures , (30). An adhesive wafer (40) includes both circular and non-circular (racetrack) cut-out , guidelines for enabling the aperture to be cut to any desired shape and size. The , …
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 August 12, 1999 and granted March 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 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.