High solids active clay coating formulations and method for producing and applying the same
CA 1090504 A · Owner: Moore Business Forms, Inc. · Inventors: Williams, Rodney E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE OF THE INVENTION:, HIGH SOLIDS CONTENT ACTIVE CLAY COATING FORMULATIONS AND METHODS FOR PRODUCING AND APPLYING THE SAME, INVENTOR:, RODNEY E. WILLIAMS ABSTRACT OF THE DISCLOSURE, Disclosed are high solids content bentonite clay coating formulations for use in the production of receiver sheets for carbonless copying systems. The formulations comprise an acid-leached bentonite-type clay and an inactive clayey material such as chalk or a mixture of chalk and kaolin. The formulations are effective for use in the "on machine" blade coating of a paper substrate to more efficiently produce receiver sheets for carbonless copy systems.
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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 December 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 1997.
- 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.