Air flow structure for an upright-type vacuum cleaner
CA 2385979 A1 · Owner: Park, Jung-Seon · Inventors: Jeon, Hyung-Il; Park, Jung-Seon; Yang, Il-Won
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air flow structure for an upright-type vacuum cleaner having a body divided by a partition into a dust-collecting chamber having a dust bag and a motor, driving chamber having a motor; an air suction port protruded at an upper part of the, dust-collecting chamber in order to draw air thereinto and having the dust , bag, disposed around the air suction port; a dust cover to cover the dustcollecting, chamber and having a plurality of ribs disposed therein in a lengthwise direction, a, concaved portion formed at a rear wall of the dust-collecting chamber in a lengthwise direction, and a grill portion formed between the dust-collecting chamber, and the motor driving chamber in order to …
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 May 10, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 10, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2024.
- 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.