Photographic method for printing particle pattern with improved adherence
CA 1045877 A · Owner: Rca Corporation · Inventors: Harper, Stanley A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method comprises (a) applying to a supporting surface a coating comprised of a photosensitizable water-soluble polymer, a soluble dichromate photosensitizer for the polymer, a soluble vanadate and particles, of the pattern material; (b) exposing the coating to a pattern of actinic radiation until exposed portions of the coating are rendered insoluble; (c) and flushing the exposed coating with an aqueous solvent to remove soluble portions of the coating, while retaining the insoluble portions of the coating in place. The method may be used particularly to print viewing-screen structures for cathode-ray tubes, electro-luminescent devices and other displays. - 1 -
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 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 1996.
- 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.