Treating biomass material
CA 2110282 A1 · Owner: Ollerenshaw, Robert Charles Anthony Watson · Inventors: Roe, Maurice Anthony; Ollerenshaw, Robert Charles Anthony Watson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of treating biomass material the method, comprising heating the biomass material without wetting and, substantially at ambient pressure to a treatment temperature, of at least 200°C for a treatment time sufficient for the material to undergo partial pyrolysis only.
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 29, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2014.
- 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.