Vacuum cleaner with dirt vessel and separate filter assembly
CA 2446252 A1 · Owner: Panasonic Corporation Of North America · Inventors: Streciwilk, Eric J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vacuum cleaner includes a housing, a nozzle inlet a suction generator, carried on the housing and a dirt collection assembly carried on the housing. The dirt collection assembly includes (a) a dirt vessel having an outer sidewalk, an inner sidewalk a bottom wall an inlet and an open end and (b) a filter assembly including a base that covers the open end of the dirt vessel a, manifold housing, a filter chamber and a filter element held in the filter chamber.
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 October 22, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 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.