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Expired Canadian patentCanada

Clinical analysis systems and methods

CA 1259554 A · Owner: Baxter Travenol Laboratories, Inc. · Inventors: Hulette, William C.

CIPO record

Overview

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

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Abstract From the Canadian patent

A unique mixing technique particularly for the clinical analysis of liquid biological samples is described. The sample is placed in a cuvette along with a reagent and diluent. For mixing the sample with the reagent to facilitate reaction therewith an air, jet is directed against the liquid surface formed in the cuvette adjacent the junction of the liquid surface with the wall of the cuvette to create a vortex to produce thorough mixing of the contents of the cuvette.

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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 September 19, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 19, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 29, 1985
GrantedSeptember 19, 1989
Term endedSeptember 19, 2006
Patent numberCA 1259554 A
Classification (IPC)G01N1/00 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedJan 29, 1985Patent grantedSep 19, 1989Term endedSep 19, 2006

Sources & verification

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