Method of fabricating bamboo slats for venetian blinds
CA 2260552 C · Owner: Chen, Feng-Yuan · Inventors: Chen, Feng-Yuan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of fabricating bamboo slats for bamboo blinds comprises the steps of : i) selecting bamboo wood from a bamboo cane and cutting the, selected bamboo wood into bamboo strips subject to a desired length and a desired width ; ii) removing the skin and joints from both sides of the bamboo strips, and boiling the bamboo strips in a hydrogen peroxide solution : iii) splicing the bamboo strips into bamboo slats of a desired thickness ; iv) coating, the bamboo strips with a bonding glue and using a pneumatic press to bond, said bamboo strips ; v) splicing the bamboo plates into bamboo slats of a predetermined thickness, and air pressing the bamboo slats and grinding the, bamboo slats by …
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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 January 28, 1999 and granted January 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 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.