Air cleaner
CA 2523075 C · Owner: Moriyama, Hiroshi · Inventors: Taniguchi, Toru; Moriyama, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air cleaner including a casing body and a sealing frame is disclosed. The casing body has a fitting part for allowing engagement of the sealing frame therein. A filter is mounted inside the sealing frame in a tightly contacted relation with the latter. The sealing frame has a groove extending along its outer peripheral surface and opening on its front surface.
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 October 11, 2005 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 11, 2025.
- 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.