Waste management system
CA 2504265 A1 · Owner: Underwood, Michael Frederick · Inventors: Underwood, Michael Frederick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A waste management system comprising providing householders with waste collection units (10, 11) having predetermined collection containers (13 14, 15) for predeter-mined categories of waste whereby the householder performs a preliminary sorting of his waste into said predetermined categories providing , a household collection vehicle (31) having collection containers for at least the waste categories sorted by the householder providing a way-station at , which categorised waste from the collection vehicle can be temporarily stored providing a way-station collection vehicle (lorry) having the facility to transport said categorised waste from a plurality of way-stations and , providing a …
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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 November 10, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 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.