Algal degrading enzyme
CA 1333574 C · Owner: Liu, Chi-Li · Inventors: Liu, Chi-Li
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing algal cell wall degrading enzyme by cultivating a thermophilic, bacterial strain of atypical Bacillus stearothermophilus e.g. W36-7-4 (NRRL B-18394) productive of the alginate lyase in an aqueous medium containing sodium alginate and tryptone, then allowing growth to take place to accumulate alginate lyase, and then recovering the enzyme from the fermentation broth. The alginate lyase is useful as a treatment agent for cooling waters.
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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 December 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 20, 2011.
- 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.