Animal immunocontraceptives expressed in plants and uses thereof
CA 2499470 A1 · Owner: Research Development Foundation · Inventors: Kitto, G. Barrie; Hirschhorn, Daniel C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides immunocontraceptive vaccines comprising a genetically engineered plant that has been modified to produce the spermspecific protein lactate dehydrogenase-C (LDH-C). When animals such as rodents eat this plant, their immune systems produce antibodies that attack their sperms. Not only would the males have less viable sperm the females would , also have antibodies to sperm entering their reproductive systems. Immunocontraception is an attractive method for reducing the population size of animals with high fecundity, and sterilizing animals using such immunocontraceptives can reduce targeted animal populations to acceptable levels in an efficient, …
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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 September 17, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2025.
- 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.