Bacterial extracellular lignin peroxidase
CA 2004343 C · Owner: Ramachandra, Muralidhara · Inventors: Ramachandra, Muralidhara; Crawford, Donald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
34, 27904/IREF-9-1-F, BACTERIAL EXTRACELLULAR LIGNIN PEROXIDASE ABSTRACT OF THE DISCLOSURE, DNA constructs are provided for the production of Streptomyces lignin peroxidase. The enzyme finds use in the degradation of lignin and oxidation of organic substrates. APP/27904
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 30, 1989 and granted August 3, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 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.