A mutated subtilisin protease
CA 2062732 C · Owner: Mooren, Arnoldus T. A. · Inventors: Olsen, Ole H.; Simonsen, Merete; Hastrup, Sven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Enzymes produced by mutating the genes for a number of subtilisin proteases and expressing the mutated genes in suitable hosts are presented. The mutated enzymes have a changed net electrostatic charge compared to the parent protease at the same pH. The enzymes exhibit improved wash performance in comparison to their wild type parent enzymes. The enzymes are , well-suited for use in detergent compositions.
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 June 26, 1990 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 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.