Wood rot preventing wood casing end grain moisture barrier assembly and method
CA 2233511 C · Owner: Young, Robert H. · Inventors: Young, Robert H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A moisture barrier assembly for the end grain at the lower end of a wood casing such as door jambs, molding for exterior building sidings and window frames is disclosed. The barrier includes a moisture impervious plate such as plastic attached to and covering the entire lower surface of the casing. As an additional protectivemeasure a layer of a wood end grain sealant such as paraffin or other olefin wax is applied to the lower surface of the casing prior to attachment of the plate to the casing. The plate may also include one or more grooves or flutes across an upper surfaceportion thereof to permit air circulation between the plate and casing for drying the casing end grain in the event …
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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
- Filed March 30, 1998 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2020.
- 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.