Method for measuring the adhesion of a coating to a substrate
CA 2494947 C · Owner: Chatellier, Jean-Yves · Inventors: Chatellier, Jean-Yves
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for measuring the adherence of a coating (2) to a substrate (1) characterised in that the measurement is taken in the air and in that an ultrasound transducer (3) is applied onto the substrate (1) using a thin coat (7) of gel and a given quality factor is calculated from the ratio between the amplitudes of the echoes associated to the first two reflections on the substrate (1) coating (2) interface after having passed through the substrate (1) or on the coating (2) air interface, after having passed through the substrate (1) and the coating (2).
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 January 31, 2005 and granted December 31, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 31, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.