Straw for the preservation by freezing of mammalian embryos and application thereof to embryo transplantation
CA 1195564 A · Owner: Institut National De La Recherche Agronomique (Inra) · Inventors: Heyman, Yvan; Renard, Jean-Paul; Ozil, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Straw for the preservation by freezing of mammalian embryos. The straw is characterized in that it is sealed at its two ends (13,14)until the time of its use in the mammal and in that the embryo (4')within the medium for preservation by freezing is surrounded,respectively: (A) on the one hand,sequentially towards one end (13,14) by (a) a gaseous mixture (5),(b)a culture medium(6)and (c) a first sealing end plug (2), (B)and on the other hand,sequentially towards the other end (14),by (d)a gas bubble (7),(e) a solution (g)of at least one water-miscible substance lowly,if at all,toxic at ambient temperature to the embryo (4')which will not get into the embryo cells but provides outside said …
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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 October 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2002.
- 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
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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.