Reagent for coagulating blood
CA 2072176 C · Owner: Toa Medical Electronics Co. Ltd. · Inventors: Yonemura, Masaru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reagent for coagulating blood for measuring blood coagulation ability containing coagulation factor activating substance such as tissue thromboplastin phospholipid and, thrombin, calcium ion and high molecular substance such as, high molecular vinyl and high molecular polysaccharide. By adding high molecular substance to the reagent the turbidi-, ty change due to blood coagulation is increased and hence, the changing quantity of transmitted light or scattered light increase, thereby making it possible to detect more accurately. Besides, by adjusting the electric conductivity, pH and osmotic pressure to proper values the turbidity, change due to blood coagulation may be further amplified.
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 23, 1992 and granted January 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2014.
- 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.