Pharmaceutical composition of f(ab)2 antibody fragments and a process for the preparation thereof
CA 2443391 C · Owner: Mancilla Nava, Rita · Inventors: Paniagua Solis, Jorge; Mancilla Nava, Rita; Lopez De Silanes, Juan
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 to a pharmaceutical composition comprising F(ab)2 antibody fragments that are preferably free from albumin and of whole antibodies , and also substantially free of pyrogens and an effective amount of a , pharmaceutically acceptable carrier. It is also directed to a method for the production of pharmaceutical , composition comprising (F(ab)2 antibody fragments using serum or blood plasma of a , mammal that has been previously immunized as a source of antibodies. The , serum or blood plasma is digested with an enzyme pepsin followed by separation and , purification until the pharmaceutical composition of F(ab)2 fragments is free of albumin and …
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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 28, 2002 and granted April 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.