Cleanable dust filter comprising a zigzag pleated filter pack
CA 2636131 C · Owner: Camfil Ab · Inventors: Neudeck, Eckhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a cleanable filter (1) for particulate material, especially dust, comprising a zigzag pleated filter pack (2) spacers (6) disposed between the pleats in the filter pack and a frame (3) having an upper (4) and lower part covering the respective upper and lower side of said filter pack that contains the ends of the fold lines and two lateral parts covering the opposite sides of said filter pack that contains the ends of the filter medium (5) zigzag folded into a filter pack said frame , (3) thereby leaving the opposite sides of the filter pack that contains alternate fold lines of the pleated filter pack free for the passage of air. , According to the …
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 January 12, 2006 and granted June 11, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 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.