Fluid flotation sleep system
CA 1103817 A · Owner: Echevarria, Angel M. · Inventors: Echevarria, Angel M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The exterior of a waterbed mattress is defined by a pair of registering frame or panel members having resilient borders of substantial height, the upper one of which includes a top pad and a resilient border of rectangular cross-section, fitting around an inclined resilient border attached to a base pad on the lower panel member. A cavity or enclosed volume defined between the two panel members is filled with separate pliant water containers, which may be elongated tubes or have other configurations and which have only limited stretchability in response to pressures normally exerted by a user. The separate water containers yield locally to user pressure and conform to the user's shape, but …
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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 June 23, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 1998.
- 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.