Process for the production of human lysozyme
CA 2002480 C · Owner: Novartis Vaccines And Diagnostics, Inc. · Inventors: Rosenberg, Steven; Hanotier, Jacques D.V.; De Baetselier, Annie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Yeast cells whose DNA has been appropriately engineered to produce and to secrete lysozyme under control of a regulatable promoter are grown in the substantial absence of lysozyme synthesis and then are induced to produce and to secrete lysozyme under growth-limited conditions. This process is particularly suitable for the production of human lysozyme or mutants thereof.
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 November 8, 1989 and granted November 10, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 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.