Process for making wood products characterized by improved resistance to water
CA 1048916 A · Owner: Deutsche Texaco Aktiengesellschaft · Inventors: Heinemann, Karl-Heinz; Cherubim, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Wood materials are prepared characterized by improved resistance, to hot water and by high weather resistance by combining wood products, with a phenol-aldehyde resin and alkylene carbonate hardener the latter, being incorporated in said resin as an aqueous formaldehyde solution.
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 February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 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.