Water-resistant clear and coloured acrylic latex sealant
CA 1294086 C · Owner: Chang, Wei Ting · Inventors: Chang, Wei Ting
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An acrylic copolymer latex sealant composition, which comprises an acrylic copolymer having a glass transition temperature not exceeding about -0°C, a hydrolyzed organoaminosilane an, anionic, non-ionic or amphoteric surfactant water, and at least about 0.5%by weight silica based on, the total amount of the composition.
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
- Granted January 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 2009.
- 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.