Cold weather life savings device
CA 2234756 A1 · Owner: Cunningham, Alan D. · Inventors: Cunningham, Alan D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cold weather life saving device, useful in surviving a fall through ice into water, provides an elongate belt, sized to be worn about the waist of an individual typically over heavy clothing. The belt provides a tubular center portion that is typically two feet in length and approximately three inches in diameter. Flotation devices are carried at evenly spaced intervals within the center portion of the elongate belt. In a preferred embodiment, four closed-cell ethylene cubes having 2.5 inch sides are used. The four flotation devices define three storage pouches between them which, may be isolated by divider walls within the tubular center portion. These pouches are typically square in …
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 April 16, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2020.
- 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.