Ostomy coupling
CA 2002647 A1 · Owner: Steer, Peter Leslie · Inventors: Wiltshire, Neil Phillip; Steer, Peter Leslie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A three part ostomy coupling has a first part 20 having a flange, a central chute 22 and an array of spaced arcuate walls; a second part 10 having a peripheral seal for engaging and surrounding the outer wall of the chute and an outwardly projecting rim capable of a snap fit with the spaced arcuate walls; and a third part 30 which is rotatable about the arcuate walls in order to effect a positive lock between the rim and the arcuate walls. The third part or locking ring 30 has on its upper surface ridge-like projections 34 which engage the arcuate walls on rotation of the ring. These effect a secure locking of the coupling elements 10 and 20.
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 November 9, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 9, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2011.
- 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.