Plastic assay cuvette having low birefringence
CA 2129246 C · Owner: Lagocki, Peter A. · Inventors: Martin. Richard R.; Vaught, James A.; Moore, Larry W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plastic assay cuvette (506) having the desired optical properties for the analysis of a test sample or reaction mixture thereof, and a method for making such a plastic assay cuvette (506) are , described. The optical properties of the plastic assay cuvette (506) are substantially the same as the optical properties of glass wherein low birefringence throughout the optical read region (516) thereof is provided. When used for the analysis of a test sample or reaction mixture thereof, such as in fluorescence polarization assays and absorbance assays the plastic assay cuvette (506) , provides accurate and reproducible disposable assay cuvette which can be used in place of conventional …
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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
- Filed March 24, 1993 and granted August 10, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 24, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.