Flexible liquid absorbing structure
CA 2525340 C · Owner: Drzewiecki, Brian Michael · Inventors: Luizzi, Joseph M.; Drzewiecki, Brian Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thin, flexible absorbent structure comprising a flexible substrate and an aqueous liquid absorbing material disposed on said substrate wherein said , aqueous liquid absorbing material comprises a homogeneous mixture of a hot melt adhesive and an aqueous liquid absorbing polymer wherein the aqueous , liquid absorbing polymer is present in the mixture in an amount greater than 1% by weight of the mixture and the aqueous liquid absorbing structure has an absorbency greater than about 5 g/g, and a Gurley Stiffness less than about 400 mg and a caliper less than about 4 mm.
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 May 20, 2004 and granted March 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 20, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2026.
- 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.