Aqueous liquid for primers
CA 2115993 A1 · Owner: Ablestik Laboratories · Inventors: Maegawa, Masao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to aqueous liquid for primers which contain a copolymer mainly formed with a cationic monomer an, alkoxysilane monomer and an ethylenic unsaturated monomer in aqueous medium, wherein low viscosity and superior permeability to basic materials are materialized in spite of its high concentration. Therefore, this liquid for primers is effective for liquid for primers applied as inorganic porous basic reinforcing materials such as concrete, mortar and the like.
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 June 17, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 17, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 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.