Thread for vascular stent and vascular stent using the thread
CA 2500089 C · Owner: Kabushikikaisha Igaki Iryo Sekkei · Inventors: Igaki, Keiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thread (1) for forming a vascular stent implanted in vessels. This thread is formed by melt-spinning a biodegradable polymer. On the surface of the thread there is formed a layer (2) of a drug-containing biodegradable polymer of the same , sort as the biodegradable polymer constituting the thread.
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 25, 2003 and granted March 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 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.