Surgical balloon having varying wall thickness
CA 2452817 A1 · Owner: Nohilly, Martin · Inventors: Dion, Dorothy; Nohilly, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surgical balloon is provided for insertion into a uterus that includes a substantially continuous outer wall defining an exterior surface of the balloon on a first side and an interior hollow of the balloon on a second side with the outer wall being, formed from a stretchable elastic material and being stretchable by pressure within the inner hollow between a collapsed state and an expanded state. The substantially continuous outer wall has a base portion for coupling with shaft, an intermediate portion adjacent the base portion and an end portion at a distal end of the balloon and adjacent the intermediate portion. The base portion has a first primary wall thickness, the intermediate …
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 December 10, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2025.
- 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.