Water dispersed primers
CA 2434182 A1 · Owner: Groves, James D. · Inventors: Groves, James D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A water dispersed primer composition comprising a solution of a halogenated hydrocarbon polymer in organic solvent; and a dispersing agent added to the solution to form a fluid primer to be dispersed in water to provide the water dispersed primer composition. Optionally fluid primers may include , photoreactive components to provide photoreactive water dispersed primer compositions. The invention further includes water based priming adhesive compositions comprising an adhesive dispersion of an adhesive polymer dispersed in water, and a primer mixed with the adhesive dispersion to form the priming adhesive.
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 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 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.