Wax emulsion for manufacture of composite boards
CA 2547751 C · Owner: Henry Company Llc · Inventors: Burns, John; Eckert, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Wax emulsions useful for manufacture of a composite board are described which include water; a lignosulfonic acid or a salt thereof; and at least one wax selected from the group consisting of slack wax paraffin wax and montan wax. Such emulsions are useful in composite board formulations and methods for making composite boards such as oriented strand boards.
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 May 19, 2006 and granted August 19, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 2026.
- 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.