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Expired Canadian patentCanada

Reaction vessel for performing sequential analytical assays

CA 1330197 C · Owner: Wogoman, Frank W. · Inventors: Wogoman, Frank W.

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Abstract From the Canadian patent

Analytical reagent reaction vessel and method for performing sequential analytical assay procedures to determine an analyte in a liquid test sample. The reaction vessel is in the form of a closed container having a substantially horizontal axis of rotation and incorporated with one or more analytical reagents for performing a desired analytical assay procedure. The reaction vessel is designed to provide free gravitational movement of a liquid test sample disposed therein. The analytical reagents are incorporated into the reaction vessel such that they are contacted with a liquid test sample in a desired order or sequence. A liquid test sample disposed in the reaction vessel is capable of …

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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 14, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 14, 1989
GrantedJune 14, 1994
Term endedJune 14, 2011
Patent numberCA 1330197 C
Classification (IPC)G01N33/54 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedMarch 14, 1989Patent grantedJune 14, 1994Term endedJune 14, 2011

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