Hydraulic baffle for waterbed mattress
CA 1252921 A · Owner: Halcyon Waterbed Inc. · Inventors: Smith, John W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A damping structure is disclosed to float freely within the envelope of a waterbed mattress. The damping structure comprises a bottom panel of flexible sheet material with a number of tubular structure extending upwardly therefrom. Each tubular structure is coupled to the bottom panel with a portion of the bottom panel closing the bottom end of the tubular structure. The tubular structure has side walls and is closed at a top end by a top panel. The top panels are buoyant and float the tubular structures upwardly so as to suspend the bottom panel spaced above the bottom sheet of the waterbed envelope. Ports are provided through the top panels, side walls and bottom end of the tubular …
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
- Granted April 18, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 18, 2006.
- 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.