Holding material for pollution control element and pollution control apparatus
CA 2621689 C · Owner: 3M Innovative Properties Company · Inventors: Miyasaka, Muneki; Yasuda, Daigo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A holding material (2) for mounting a pollution control element (1) in a pollution control apparatus (10) that provides for a high friction coefficient with the casing (4) and/or the pollution control element and can hold the pollution control element with good stability. The holding material comprises a fiber material (e.g. in the form of a mat) having a thickness and being provided with a friction layer (3) comprising inorganic colloidal particles (5) on an outer peripheral surface and/or an inner peripheral surface of the fiber material.
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 September 5, 2006 and granted May 14, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2026.
- 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.