Alginate fabric, its use in wound dressings and surgical haemostats and a process for its manufacture
CA 2109217 A1 · Owner: Mahoney, Peter Michael John · Inventors: Mahoney, Peter Michael John; Keys, Allison Frances; Fenton, John Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-woven fabric of alginate staple fibres characterised in that the alginate fibres are arranged in layers which layers are joined together at a plurality of points throughout the fabric whereby an embossed patern is produced on at least one of the major external surfaces of the fabric wherein the ratio of embossed:unembossed area is in the range of 1:1 to 1:9. The fabric is useful for the preparation of wound dressings and in particular surgical haemostats.
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 30, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2014.
- 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.