Colorimetric analytical test apparatus
CA 1113279 A · Owner: Her Majesty The Queen, In Right Of Canada, As Represented By The Ministe R Of Agriculture · Inventors: Mcgregor, Douglas I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Douglas Ian McGregor, ABSTRACT OF THE DISCLOSURE An analytical test apparatus suitable for the colorimetric determination of glucose in the presence of inhibitors includes:, - an inert solid backing having a sample-receiving zone (a) spaced from an adsorbent zone (b) and test zone (c) - a wick to transport liquid from zone (a) to zone (b) - activated carbon adsorbent at zone (b) and, - glucose test paper at test zone (c); the three zones being in liquid-conducting capillary contact. The amount and nature of the adsorbent is selected to preferentially remove the inhibitors but not the glucose. The apparatus is especially useful as a stick for determining glucosinolate contents of oilseeds …
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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 December 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 1998.
- 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.