Method for applying a water repellant composition with a water carrier
CA 2014341 C · Owner: Stout, Mike F. · Inventors: Stout, Mike F.; Brunken, Dean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for treating siliceous and carbon central structures with a water repellant composition wherein an affective amount of water repellant composition is dispersed in water and the mixture then is applied in a continuous process after the mixing to the structure to be treated. The methods also contemplate increasing the depth of penetration of a silane into the structure to be treated by applying subsequent applications of silane to the structure to be treated.
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 11, 1990 and granted December 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 2012.
- 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.