Potable hot water storage vessel and method of manufacture
CA 2009273 C · Owner: Adams, Charles L. · Inventors: Adams, Charles L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A potable, hot water storage vessel is shown with a metallic body having a water inlet, water outlet and at least one additional opening communicating the vessel interior and exterior. A flexible, non-molded liner is installed within the vessel interior through the additional opening. The liner has integrally formed ports which extend through the vessel inlet and outlets to the exterior of the vessel body. A bolt-on flange is received on the vessel exterior at the inlet and outlet to form a seal with each of the liner ports.
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 5, 1990 and granted October 27, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2012.
- 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.