Blood coagulation time test apparatus and method
CA 2124462 C · Owner: Samo, Robert John · Inventors: Samo, Robert John; Cusack, Robert; Laduca, Frank M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is an apparatus and method for performing a coagulation time test on a sample of blood wherein the blood (16) is deposited in a fluid reservoir (18) and disposable cuvette (12). Within the cuvette (12) is formed a capillary conduit (30) having at least one restricted region (44). The cuvette (12) is inserted into a testing machine (14) which engages the cuvette (12) and draws blood (16) from the fluid reservoir (18) into the capillary conduit (30). The blood in then caused to reciprocally move within the capillary conduit (30) whereby the blood (16) is forced to traverse the restricted region (44). The testing machine (14) measures the time required each time the blood …
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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 1, 1993 and granted May 21, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 1, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 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.