Cellular structure and a method for making a cellular structure
CA 2410403 C · Owner: Teh Yor Industrial Co. Ltd. · Inventors: Yu, Ful-Lai
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cellular structure such as a honeycomb window treatment and method for making the cellular structure is provided by securing a plurality of rows of elongated cells to one another each of the plurality of rows of constructed by providing a first longitudinally extending length of material. This first material includes a first surface and a second surface. The first material further includes a lesser width portion and a greater width portion. A second longitudinally extending length of material is also provided. The second material also includes a first surface and a second surface of the first material. The second surface of the second material is secured to the first surface over the …
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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 October 31, 2002 and granted March 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2024.
- 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.