Hazardous waste disposal container
CA 2041472 C · Owner: West, Thomas M. · Inventors: West, Thomas M.; Morrison, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a collapsible multi-wall fiberboard con-, tainer which is fixedly attached to a pallet. The container is particularly designed to hold flowable type materials such as sludge or particulates and, may be used for containing, transporting storing or disposing of hazardous, waste. The container is preferably a double wall tubular member having, opposed side panels and opposed end panels with the end panels being gen-, erally normal to the side panels. The container also includes top and bottom flaps hingedly connected to the end and side panels. Three of the bottom flaps are formed as a half bellows. The remaining bottom flap is adapted to be attached to a pallet. …
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 30, 1991 and granted February 13, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2013.
- 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.