Implantable vascular grafts
CA 1283517 C · Owner: Pinchuk, Leonard · Inventors: Pinchuk, Leonard; Martin, John B. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Implantable Vascular Grafts, Abstract of the Disclosure Vascular grafts are provided that have an external surface which has a porous structure that is conducive totissue ingrowth thereinto after the vascular graft has been implanted. The vascular graft is prepared by winding an extruded fiber onto a mandrel in the presence of intermittently applied electrostatic forces. Such vascular graft may include an internal surface that was formed under the influence of the electrostatic charge which internal, surface has a porosity that is substantially less than that of said porous external surface.
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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
- Granted April 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2008.
- 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.