Spa and method of controlling spa system
CA 2727752 C · Owner: Balboa Instruments, Inc. · Inventors: Daystrom, Stefan; Cline, David J.; Otto, Cindy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of controlling a spa system including a tub holding a body of spa water a water circulation system for recirculating spa water through a water heater to heat the spa water the system including a user control panel operatively connected to a control system for entering manual commands to control spa parameters the method comprises operating the spa system in a standard spa mode at a spa water temperature use setting or at a water temperature set by manual command entered by a user or a preset temperature monitoring non-usage of the spa system by the user and automatically setting the spa system to a low energy usage mode a predetermined time period after use of the spa has ceased.
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 August 31, 1999 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 31, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 31, 2021.
- 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.