Mattress foundation with vibrator
CA 1165652 A · Owner: Northwest Bedding Company · Inventors: Evanson, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A mattress foundation having a rigid frame covered at least in part by a continuous stationary horizontal top surface. A layer of resilient material overlies the stationary top surface. An open grid freely rests on this layer and is resiliently supported by it. A powered vibrator unit is fixed to the grid and is physically clear of contact with the frame. The grid is resiliently covered. It is capable of imparting vibratory movement about the top surface of the completed foundation assembly. In one form a section of the grid is resiliently supported on the frame by interposed upright springs.
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 17, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 2001.
- 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.