Cellulase producing actinomycetes, cellulase produced therefrom and method of producing same
CA 2330245 C · Owner: Van Der Kleij, Wilhelmus A. H. · Inventors: Weyler, Walter; Van Solingen, Piet; Van Der Kleij, Wilhelmus A. H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel composition is provided which is predicable by an Actinomycete. The cellulase has an approximate calculated molecular weight of 36 kD and has a pH optimum at 40 ~C of 8 and 60 ~C of 7. Also provided is a DNA encoding said cellulase, a method for producing the cellulase and applications 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 May 28, 1999 and granted December 20, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2021.
- 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.