Filter bag arrangement for a vacuum cleaner
CA 2520925 C · Owner: Stein, Thomas · Inventors: Falkenstein, Bernd; Stein, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filter bag arrangement for a vacuum cleaner includes a bag body of filter material and a stiffening element in the form of a filter mounting plate with an inlet opening of the bag therein. The vacuum cleaner includes a housing defining a chamber into which the bag may be inserted a lid to cover the chamber, and a filling pipe stub that is insertable into the inlet opening. Plural individual mounting elements are provided at the outer edge of the stiffening element and are inserted into corresponding individual receivers of the housing so as to spatially position and fix the inlet opening of the filter bag arrangement relative to the housing of the vacuum cleaner.
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 23, 2005 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 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.