Transgenic fowl expressing bovine growth hormone
CA 2027619 A1 · Owner: Garber, Ellen A. · Inventors: Kopchick, John J.; Chen, Howard Y.; Garber, Ellen A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Transgenic fowl have been produced by infection of fresh fertile eggs with a recombinant retroviral vector carrying the bovine growth hormone gene. Integration and expression of the exogenous gene has resulted in the production of desirable traits in the fowl developing from such treatment.
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 October 15, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 2012.
- 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.