In vivo use of fluid absorbent polymers
CA 2428800 C · Owner: Simon, Jaime · Inventors: Simon, Jaime; Strickland, Alan D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The subject invention is a method and material for removing fluid from the intestinal tract of a host and may be useful in treating animals or human patents suffering from fluid overload states. In one embodiment the subject , method involves ingesting and entericaally coated non-systemic non-toxic, non-, digestible, water absorbing polymer which absorbs fluid while passing through the intestinal tract. The polymer is excreted in the feces wherein the polymer and absorbed fluid is removed from the body. Preferred polmers include super absorbent acrylic acid polymers, preferably provided in bead form. The polymers may include functional groups for selectively removing blood borne …
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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 November 6, 2001 and granted September 13, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2023.
- 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.