Isolation of inner cell mass for the establishment of human embryonic stem cell (hesc) lines
CA 2458362 A1 · Owner: Parikh, Firuza Rajesh · Inventors: Parikh, Firuza Rajesh; Totey, Satish Mahadeorao; Saxena, Shailaja Anupam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for isolating an inner cell mass comprising the steps of immobilizing a blastocyst stage embryo having a zona pellucida trophectoderm, and inner , cell mass, creating an aperture in the blastocyst stage embryo by laser ablation, and removing the inner cell mass from the blastocyst stage embryo through the aperture. The aperture is through the zona pellucida and the trophectoderm. The laser ablation is achieved using non-contact diode laser. The inner cell mass removed from the blastocyst stage embryo is used to establish human Embryonic Stem Cell lines.
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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
- Filed August 20, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 2024.
- 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.