Acoustically active hot tub
CA 2348250 C · Owner: Beachcomber Hot Tubs Inc. · Inventors: Jackson, Garth; Lahay, Glenn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An acoustically active hot tub has audio transducers affixed to the underside of the shell forming the hot tub. The hot tub reproduces sound from a sound source such as a radio or compact disc player. Effective transducers will generally have a frequency response somewhere in the range of 20 Hz - 20,000 Hz. The transducers are affixed to the underside of the shell of the hot tub by means of blocks of marine grade plywood embedded into the material forming the underside of the shell with the transducers mounted onto the blocks. Also provided is a new method for manufacturing the hot tub of the invention.
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 May 23, 2001 and granted August 12, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2023.
- 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.