Solar blanket storage device
CA 2002804 C · Owner: Strevey, Florian · Inventors: Strevey, Florian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solar blanket storage device that rolls up a flexible solar blanket from a flat position covering a swimming pool, and by means of pulley operated arms attached to poles at one end of the pool lifts and moves the rolled up solar blanket to a position above and to the side of the pool so as to be substantially clear of the entire region above the pool and to avoid substantial blocking a view of the pool from behind the position. This eliminates hazard and interference with users of the pool and with the ability of guarding persons to watch the pool. In addition the blanket can be collected or dispensed without chafing against the pool because the solar blanket can be drawn off the roller …
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 November 10, 1989 and granted March 2, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 10, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2011.
- 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.