Pool liner perimeter
CA 2355556 A1 · Owner: Cosgrave, Josephine S. · Inventors: Cosgrave, Josephine S.; Cornelius, Kerry J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Pool Liner Perimeter consists of an additional piece of vinyl or similar material attached such as by heat sealing around the complete perimeter of the top of a swimming pool liner side wall. The depth of this additional piece can be anywhere from approximately 15 inches to 6 or 7 feet so as to extend from the top wall of the pool down and into the water line and if, necessary, or desired, to the bottom of the pool wall. The liner acts as a sun shade for the portion of the liner that is close to and above the water line.
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 August 17, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 17, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 17, 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.