Coat detection method
CA 1103048 A · Owner: Scott Paper Company · Inventors: Libby, Craig R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a method of detecting a cured silicone coating applied to a paper substrate or the like in web form comprising, adding an effective amount of a fluorescent pigment to the silicone coating formulation to be applied to the substrate applying the, coating to the substrate curing the silicone coating, scanning the coated surface of the substrate with a UV light source and detecting, the fluorescence of the coating. Also disclosed is the coated paper product with which the method of the invention can be employed. -0-
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 June 16, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 1998.
- 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.