Expired Canadian patentCanada
Unflavored psyllium drink mix compositions
CA 2131175 C · Owner: Noll, Joseph Clifford · Inventors: Noll, Joseph Clifford; Tse, Hing Cheung
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Psyllium-containing drink mix compositions comprising acid and base at a level whereby the composition when combined, with water, has a pH of greater than about 4.8.
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 23, 1993 and granted August 19, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 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.
FiledFebruary 23, 1993
GrantedAugust 19, 1997
Term endedFebruary 23, 2013
Patent numberCA 2131175 C
Classification (IPC)A23L2/38 +2 more
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.