High density yeast preparation, a method for producing the same, and the use thereof
CA 2074267 C · Owner: Lallemand, Inc. · Inventors: Suoranta, Kari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel high-density liquid or past yeast preparation which comprises approximately 1-20% (w/w) of a polyhydroxy compound selected from a group comprising propylene glycol, glycerol, non-fermentable mono- or oligosaccharides or sugar alcohols, soluble oligo- or polymeric carbohydrates and polyethylene glycol or, mixtures thereof, and fresh yeast. The high-density yeast preparation has a density of more than 800 g yeast (27-29% dry matter) per 1 liter of the preparation and, the concentration of the polyhydroxy compound in the extracellular liquid is 5-50% (w/v). The preparation has an improved capability of regaining its activeness it dissolves instantly and is easily batched uniformly, …
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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 February 15, 1991 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 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.