Test device and method for determining blood hemoglobin
CA 1063826 A · Owner: Miles Laboratories, Inc. · Inventors: Genshaw, Marvin A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A test device and method are provided for determining the hemoglobin content of blood. The test device comprises a substantially opaque light reflecting matrix having 2 refractive index significantly different from the refractive index of blood. In use, a test sample of blood is contacted with the matrix of said test device and the light reflectance therefrom is measured as an indication of the quantitative amount of hemoglobin present in said sample.
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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 October 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 9, 1996.
- 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
Timeline From CIPO dates
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.