Biopolymer salts with low endotoxin levels, biopolymer compositions thereof and methods of making the same
CA 2352830 A1 · Owner: Colegrove, George T. · Inventors: Holahan, John L. Iii; Raczkowski, Robert; Montana, Monica A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed towards biopolymer salts and biopolymer compositions comprising a biopolymer salt having an endotoxin content less than about 100 endotoxin units per gram. Because of their low endotoxin content, the biopolymer salts and biopolymer compositions of this invention may be administered parenterally to a patient. The present invention is also directed to methods of preparing the compositions of this invention.
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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 November 12, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 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.