Polymer stabilized proteinases
CA 2450985 A1 · Owner: Williams, L. David · Inventors: Bhaskaran, Shyam S.; Williams, L. David; Sherman, Merry R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods are provided for the stabilization of proteinases by the covalent attachment of or admixture with water-soluble polymers. The resultant stabilized proteinases have increased stability under the harsh conditions used in industrial genomics, which permits their use in the extraction and isolation of nucleic acids and the identification of disease-related prion proteins at elevated temperatures in solutions containing chaotropic agents such as sodium dodecyl sulfate, urea or guanidinium salts conferring , advantages for robotic applications.
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 June 28, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 28, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 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.
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.