Dust collecting filter for vacuum cleaner and vacuum cleaner having the same
CA 2425534 A1 · Owner: Jin, Hyoung-Jong · Inventors: Jin, Hyoung-Jong; Joo, Sung-Tae
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dust collecting filter for an vacuum cleaner capable of being reused after being emptied and washed. The dust collecting filter comprises a filter casing having a backside surface and a side surface vertically extended from an edge of the, backside surface to thereby define a predetermined space therein the backside, surface having an air discharging hole formed therein to fluid-communicate with the, air outlet, a cover having an air inflow hole fluid-communicating with the air inlet, and reparably connected with the filter casing and a dust filtering means , mounted, in the filter casing for filtering dust from the air that is drawn in through the air, inflow hole and discharged …
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 April 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 2025.
- 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.