Method for washing an article and collecting the used wash water, and wash pad and mobile apparatus useful therewith
CA 2084700 C · Owner: Kyoto Containment Systems, Inc. · Inventors: Latimer, Douglas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a method for washing an article and collecting the used wash water as well as a wash pad and a mobile apparatus. A wash truck is modified to include a water treatment unit and a submersible pump for removing used wash water from a water-proof surface such as pavement or the wash pad. The used wash water is subsequently recycled and reused or disposed of without harm to the environment. The wash pad includes a bottom sheet and a containment wall that together define a containment area for containing the used wash water. A secondary containment area may be defined for wash pads that are used for the washing of vehicles. The wash pad may be rolled for storage upon a reel …
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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 7, 1992 and granted March 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 2014.
- 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.