Anodized supports and radiation sensitive elements therefrom
CA 1193571 A · Owner: Polychrome Corporation · Inventors: Huang, Jen-Chi; Herting, Hans-Peter; Golda, Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided an improved anodized support material comprising an anodized support material which has been treated with an alkali metal salt of a condensed aryl sulfonic acid during or subsequent to anodization; an improved radiation-sensitive element comprising the above improved supports to which has been applied a radiationsensitive composition, and improved lithographic printing plates prepared from said elements.
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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 September 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2002.
- 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.