Polymer-coated stent structure
CA 2244641 C · Owner: Loeffler, Joseph P. · Inventors: Loeffler, Joseph P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The thickness of a polymer coating applied to the interior surface of a stent precisely is controlled by fitting a mandrel within its interior. Fitment of an exterior mold serves to additionally control the thickness of polymer on the exterior surface of the stent. Alternatively, a pre-formed sheath of polymer is fitted to the interior of the stent whereby the subsequent application of polymer not only causes the exterior to become coated but also causes the sheath to become adhered to the stent.
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 10, 1998 and granted October 31, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2020.
- 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.