Method of stabilising colostrum for immunochemical examination
CA 2024959 A1 · Owner: Duphar International Research B.V. · Inventors: Weststrate, Marinus W.; Hilgers, Lucas A. T.; Scholten, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
DIR 0450, ABSTRACT:, The invention relates to a method of stabilizing a sample of colostrum or milk which is intended for immunochemical examination, by adding a stabilizing system which comprises the following components:, (a) a microbiological preservative (b) a buffer solution which buffers the sample at a pH between 5 and 8, preferably between 5.5. and 6.5 and, (c) one or more non-ionic surface-active substances the components (a), (b) and (c) being selected in such manner that they do not interfere with the immunochemical examination to be carried out. The invention also relates to the stabilization kit to be used for this purpose.
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 September 10, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.