Angiogenic tissue implant systems and methods
CA 2132016 A1 · Owner: Martinson, Laura A. · Inventors: Johnson Robert C.; Johnston, William D.; Brauker, James H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Implant assemblies (10) and methodologies provide immuno-protection for implanted allografts xenografts, and isografts. The, assemblies and methodologies establish an improved boundary between the host and the implanted cells (12). The boundary has a pore size, an ultimate strength, and a metabolic transit value that assures the survival of the cells (12) during the critical ischemic period and afterward. The boundary allows the fabrication and clinical use of implant assemblies and methodologies that can carry enough cells (12) to be of therapeutic value to the host yet occupy, a relatively small, compact area within the host.
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 March 25, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2015.
- 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.