A coated sodium phosphate bowel cleanser
CA 2221011 C · Owner: Mccrimlisk, Robert · Inventors: Mccrimlisk, Robert; Sarnowski, Kenneth G.; Wood, Thomas G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sodium phosphate bowel cleansing composition which has improved taste over conventional sodium phosphate compositions. The composition comprising free flowing monobasic sodium phosphate and dibasic sodium phosphate powders or crystals which have been coated with at least one edible grade film forming polymer such as hydroxypropylmethyl cellulose or polyethylene glycol.
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 November 13, 1997 and granted June 24, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2019.
- 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.