Hose for vacuum cleaner
CA 2424868 A1 · Owner: Lee, Hyun-Mi · Inventors: Lee, Hyun-Mi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a hose (1) for a vacuum cleaner comprising synthetic resin strips (10), each of which comprises a flat portion (11) a reversed, U-shaped protrusion (20) formed at an end (11a) of the flat portion (11) and having an electrical conductive wire (40) inserted therein and a hook-shaped, cover (30) integrally formed at the other end (11b) of the flat portion (11) with, a predetermined space from the reversed U-shaped protrusion (20) so that the space between the protrusion (20) and the cover (30) allows smooth bending and stretching of the hose (1) wherein two adjoining strips (10, 10') are helically wound so that the reversed U-shaped protrusion (20) of one strip is overlapped with …
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 9, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 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.