Rhizobium vector system
CA 1236037 A · Owner: Allelix Biopharmaceuticals Inc. · Inventors: Sadowsky, Michael J.; Verma, Desh P.S.; Olson, Eric R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Symbiotic genes of Rhizobium bacteria are isolated and identified, for cloning into other cells etc. by a process which involves introducing into the chromosomal DNA of Rhizobium a promoterless lac operon from E. coli. This is accomplished by use of a novel construct of the promoterless lac operon a, transconjugant such as defective mu-d I (kan lac) phage and a, suitable suicide vector such as pGS6. The transconjugant Rhizobia so formed is selected for kanR to isolate cells, which have taken up the lac operon. On a random basis some of, the transconjugants have inserted the lac operon appropriately to a sym gene promoter which now acts as promoter for the lac operon. Now, in the appropriate …
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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 May 3, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2005.
- 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.