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Expired Canadian patentCanada

Air filter housing with sealing means

CA 2640322 C · Owner: Camfil Ab · Inventors: Mahler, Axel

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention relates to an air filter housing (1) having at least one filter chamber (2, 3) for receiving at least one filter unit (F) an access , opening (4, 5) in a side wall of said housing leading to said filter chamber a door (6,7) for closing said access opening and a clamping device (10 11) , for holding said at least one filter unit in abutment against a first end wall of said filter chamber. According to the invention a portion (16) of said clamping device is, when a filter unit (F) is held by said clamping device (10, 11), sealingly in abutment with a circumferential portion (15) of the wall of said housing (1) in the second end of said filter chamber (2 3) so , that …

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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 March 14, 2006 and granted October 16, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 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.
FiledMarch 14, 2006
GrantedOctober 16, 2012
Term endedMarch 14, 2026
Patent numberCA 2640322 C
Classification (IPC)B01D46/24 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMarch 14, 2006Patent grantedOct 16, 2012Term endedMarch 14, 2026

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.