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Expired Canadian patentCanada

Hemolytic method for the continuous determination of antistreptolysin o antibodies in blood or serum samples, using oxidised streptolysin o

CA 1162846 A · Owner: Diesse Diagnostica Senese S.R.L. · Inventors: Ricci, Antonio

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Abstract From the Canadian patent

The hemolytic method for the continuous determination of antistreptolysin O antibodies (ASO) in blood samples consists of reacting a first reagent containing a single dose of oxidised SO with the specific antibodies which may be present in the blood sample under examination allowing the necessary time to pass for the reaction between the oxidised SO and said antibodies to take place returning the oxidised SO to its reduced state by adding a second reagent, and measuring the rate of hemolysis. The continuous determination of the ASO titre is obtained by comparing said rate of hemolysis with the rate of hemolysis shown graphically for samples of known ASO titre. - 1 -

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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

  • Granted February 28, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 28, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 30, 1981
GrantedFebruary 28, 1984
Term endedFebruary 28, 2001
Patent numberCA 1162846 A
Classification (IPC)G01N33/96 +2 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedJune 30, 1981Patent grantedFeb 28, 1984Term endedFeb 28, 2001

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.