Flood protection apparatus
CA 2428579 A1 · Owner: Lockwood, Steven · Inventors: Lockwood, Steven; Lockwood, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flood protection barrier for a structure (2) is disclosed. The barrier (22) is adapted to overlie at least a portion of the outer skin of the structure (27) in the region where the structure engages with the ground (12). The barrier (22) comprises at least one impermeable sheet (58) and at least one seal means (26, 28), in which each impermeable sheet (58) is flexible and at , least one seal means (26, 28) is a means adapted to reversibly form a substantially watertight seal between an impermeable sheet (58) and at least one of the structure (2), the ground (12) or an impermeable sheet (58). The , impermeable sheet (58) is sufficiently flexible to be elastically deformed by the …
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 28, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 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.