Central vacuum cleaning system battery housing and handle
CA 2531828 C · Owner: Cube Investments Limited · Inventors: Cunningham, J. Vern
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A central vacuum cleaning system hose handle uses a battery and has a battery , compartment and , a battery housing. Battery housing is interchangeable with power plug housing. When housing , is drawer then drawer and handle have slide mechanism on which drawer extends in and out. , First stop limits depth drawer can slide in. Second stop limits depth drawer can extend out. , External access prevented when drawer extended to first stop permitted when , drawer extended , to second stop. Releasable locking mechanism inhibits drawer from extending out when handle , in use. Crib releasably retains battery. Spring electrical contacts at opposing ends of crib. Crib , generally formed to …
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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 December 30, 2005 and granted October 21, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 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.