Method and reagent kit for determining activity of 5'-nucleotidase
CA 2407446 A1 · Owner: Bertha, Andras · Inventors: Bertha, Andras; Tulok, Istvan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for determining activity of 5'-nucleotidase in which a biological sample is incubated in a manner and under conditions known per se with a nucleotide pentose monophosphate as substrate the , liberated inorganic phosphate is converted into a coloured complex by treating it with ammonium molybdate and a reducing agent colour intensity is measured , by a known method and from the measured value the activity of 5'-nucleotidase or the amount of inorganic phosphate liberated within unit time as a , figure proportional to the activity of 5'-nulceotidase is calculated with a , known calculation and/or with the aid of a calibration curve. According to the …
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 July 3, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2022.
- 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.