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Expired Canadian patentCanada

Inhibition of reduction activities of leukocytes

CA 1206400 A · Owner: Eastman Kodak Company · Inventors: Guardino, Robert F.; Belly, Robert T.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, A means of selectively lysing leukocytes but not bacteria is described. This technique is useful in conjunction with a reduction analysis to provide a rapid interference-free determination of either leukocytes or bacteria in clinical samples. The method is adaptable to a solution or dry element mode.

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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 June 24, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 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.
FiledApril 18, 1983
GrantedJune 24, 1986
Term endedJune 24, 2003
Patent numberCA 1206400 A
Classification (IPC)C12Q1/04 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 18, 1983Patent grantedJune 24, 1986Term endedJune 24, 2003

Sources & verification

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