Production of yeast product from lactose-containing sugars
CA 2136744 A1 · Owner: Kramer, Roland Kelly · Inventors: Kramer, Roland Kelly; De Boer, Rudolf; Mckernan, Ronald Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2136744 9324610 PCTABScor01, A process for producing a substantially pure yeast product and a modified cultured yeast product from a lactose-containing substrate. The process includes filtering the substrate inoculating the, substrate with a yeast strain and fermenting it under yeast growth conditions in a bioreactor. The product of the bioreactor is then separated into a yeast cream and a centrate. A portion of the yeast cream is further processed to produce a substantially pure yeast product. The centrate is concentrated and combined with the remainder of the yeast cream to produce a yeast cream/centrate mixture. This mixture is further processed to produce a modified cultured yeast …
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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 27, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 27, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2015.
- 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.