Device for the direct measurement of low density lipoprotein cholesterol
CA 2117118 C · Owner: Foltz, Mary Margaret · Inventors: Payne, Robert C.; Foltz, Mary Margaret; Hsu, Chen-Jung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a dry phase device for separating high density lipoprotein from a blood (serum or plasma) sample. The device comprises a fluid permeable material having dispersed therein finely divided porous silica, or silicate particles as selective absorbent for HDL. By combining the device with a second layer designed to remove VLDL/chylomicrons from the blood and a third, layer containing means for quantitative cholesterol detection, there is provided a test device for the direct determination of LDL cholesterol.
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 March 7, 1994 and granted January 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2016.
- 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.