Improved methods for the preparation of endotoxin-binding proteins
CA 2136208 C · Owner: Grinna, Lynn S. · Inventors: Grinna, Lynn S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are improvements in methods for the isolation of endotoxin-binding proteins which are secreted by transfected host cells in appropriate cell culture media In its preferred embodiment, the , invention comprises addition of a canon exchange material to the media as the means of increasing the yield of recombinant endotoxin-binding proteins, such as , bactericidal/permeability-increasing protein and lipopolysaccharide-binding protein.
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 19, 1993 and granted August 10, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 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.