Voltage converter for water treatment system uv bulb
CA 2271577 C · Owner: Markham, Ronald C. · Inventors: Markham, Ronald C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a water treatment system adapted to be powered by an AC line voltage the system including a housing and an ultraviolet bulb within the housing with a control circuit for providing power to the bulb the control circuit adapted to be operated at a voltage lower than the line voltage. A voltage converter is provided for converting the AC line voltage to the lower voltage the voltage converter being adapted to uniquely convert the AC line voltage to the lower voltage and including plug means at the housing for connecting the voltage converter to the control circuit such that the plug means facilitates interchangeable installation of appropriate voltage converters adapted to …
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 July 16, 1996 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 16, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2018.
- 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.