Log construction
CA 2276966 C · Owner: Moore, Kenneth G. · Inventors: Moore, Kenneth G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A log construction has a pair of logs, each being formed with two upright boundary surfaces each boundary surface of one log being complementary to the corresponding upright boundary surface of tile other log when arranged in a corner formation therewith each of the logs having a pair of cavities each of the cavities extending along and open to an entire vertical dimension of a respective boundary surface so that, in the corner formation, the opposing cavities in each mating pair of boundary surfaces form a passage and a resilient material sufficiently located in each of the passages to form a barrier to weather across the boundary surfaces.
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 July 7, 1999 and granted September 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 2021.
- 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.