Wastewater treatment station in shipping-container
CA 2418876 C · Owner: Jowett, E. Craig · Inventors: Jowett, E. Craig
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A standard 20ft or 40ft sea-freight shipping container is configured as a septic tank or as an aerobic trickle filter station. The shipping-container is lined with a watertight shell or liner. The liner may be a preferabricated separate structure inserted into the container and supported from the container walls. Or the liner may be actually constructed inside the container again taking mechanical support from the container walls. The openable doors at the end of the standard container are retained a wall being added to the shipping-container a foot or two inside the doors to form the tank leaving a utility room for pipework, valves pumps, etc.
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 February 13, 2003 and granted February 27, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 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.