Electronically readable information carrier
CA 2010400 C · Owner: Boyd, William Ronald · Inventors: Boyd, William Ronald; Keiser, Dale Arthur; Jackson, Charles Arthur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An instrument (20) determines the concentration of a medically significant component (e.g. glucose) of a biological fluid (e.g. blood) by reading an optical characteristic (remission) of a product of a reaction of the medically significant component (glucose) with a test chemistry. An information carrier (36) contains information relating to the test chemistry to calibrate the instrument (20) to determine the concentration of the medically significant component (glucose) more accurately. The instrument includes a socket (30) for removably receiving the information carrier (36) and through which electrical contact is made to the information carrier (36) to provide the calibration information …
Read the whole patent
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 February 20, 1990 and granted October 22, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 2012.
- 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.