Personal flotation device
CA 1111714 A · Owner: Almarin Canada Ltd. · Inventors: Luhtala, Antti J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Lifesaving apparatus in the form of a jacket having appended sleeves and a collar includes pliable inner and outer shells that are joined along construction seams which define several closed, isolated pockets. Each pocket contains at least one laminar slab of thermally insulative closed-cellular foam flotation material that is positioned to define a vacant margin alongside each seam. This seam construction results in a flotation garment that is less restrictive and more comfortable and which permits a high degree of user mobility either in or out of the water. Flotation material in the collar, together with its compliant seam causes the collar to rise automatically to support at least …
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
- Granted November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 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.