Microbes and their use to degrade n-phosphonomethylglycine in waste streams
CA 2045752 C · Owner: Heitkamp, Michael Alan · Inventors: Adams, William James; Hallas, Lawrence Edward; Heitkamp, Michael Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is provided for the degradation of N-phosphonomethylglycine. A mixed culture of microorganisms (ATCC 55050) is attached to an inert immobile, support, and then contacted with an aqueous solution of N-phosphonomethylglycine for a sufficient time to degrade the N-phosphonomethylglycine. One of the microorganisms in the mixed culture was identified as Moraxella anatipestifer (ATCC 55051).
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, 1991 and granted September 24, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2013.
- 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.