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Expired Canadian patentCanada

Ketone control test composition, method and test device

CA 1203151 A · Owner: Miles Laboratories, Inc. · Inventors: Greene, Carmine M.

CIPO record

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Abstract From the Canadian patent

A composition device and method for preparing a, ketone control solution are disclosed,. The composition comprises dimethylformamide and a Group I II or, III metal salt of a .beta.-keto acid ester. The salt has the structure, in which R is lower alkyl of 1 to 6 carbon atoms R', is an aliphatic or cyclic group having 1 to about 7 carbon atoms, M is a Group I, II or III metal ion and n is 1, 2 or 3. A carrier matrix incorporated with the composition can be affixed to a support member to form the device. Preferably, a hydrolyzing agent is included on the device in the same or another carrier matrix. The method for preparing the control solution comprises contacting a predetermined volume of an …

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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 April 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 23, 1983
GrantedApril 15, 1986
Term endedApril 15, 2003
Patent numberCA 1203151 A
Classification (IPC)G01N33/64

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedSep 23, 1983Patent grantedApril 15, 1986Term endedApril 15, 2003

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