Hydrocolloid wound gel
CA 2094533 C · Owner: E.R. Squibb & Sons, Inc. · Inventors: Chambers, Lesley A.; Delargy, Hugh; Queen, Douglas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hydrocolloid wound gel composition useful for cleansing an debriding wounds and having some capacity for absorbing wound exudate and a method of treating wounds comprising applying the hydrocolloid wound gel to a wound. The composition includes sodium carboxymethylcellulose, pectin, propylene glycol and water.
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 April 21, 1993 and granted December 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 21, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 21, 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.
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.