Anticorrosion separator for wood deck fasteners
CA 2490160 C · Owner: Aldykiewicz, Antonio J. Jr. · Inventors: Blay, Gerald L.; Wydra, Walter W.; Jansen, Ann M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Exemplary methods and assemblies for preventing corrosion of metal connector devices e.g. zinc-galvanized joist hangers and fasteners used for assembling outdoor structures such as decks from wood components pretreated with alkaline copper quat (ACQ) ammoniacal copper quat (ACQ-B), copper azole (CA) or mixtures thereof. Membrane barriers separate metal from wood and seal around fasteners thus minimizing corrosion of the connector devices and fasteners.
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 December 14, 2004 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 14, 2024.
- 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.