Bacillus thuringiensis genes encoding novel coleopteran-active protein toxins
CA 2059897 A1 · Owner: Narva, Kenneth E. · Inventors: Payne, Jewel M.; Narva, Kenneth E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
MA72-C, Abstract of the Disclosure, The subject invention concerns Bacillus thuringiensis (B.t.) gene(s) obtainable from the novel B.t. isolate B.t. PS40D1 and/or B.t. PS122D3. The, gene(s) encode protein toxin(s) having activity against coleopteran pests. Microbe and plant hosts transformed with the gene(s) of the invention can be used to express the protein toxin(s) and, thus control coleopteran pests.
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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 January 23, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2014.
- 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.