External frame backpack with flexible harness
CA 2262641 A1 · Owner: Dana Design, Ltd. · Inventors: Gleason, Dana W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An external frame backpack (10) includes a frame (14) a hipbelt (32), two , flexible stays (50 52), a back panel (38), and a lower panel (40). The frame is external and substantially rigid. It includes upper middle, and lower , frame members (22, 24 26) secured between frame side rails (18 20). The , hipbelt is attached to the frame adjacent the lower frame member. The flexible stays are elongate with upper and lower ends. The upper ends are attached to the upper frame member. The lower ends are attached to the sides of the hipbelt. The stays are flexible to allow movement of the hipbelt as the stays bend while transmitting at least a portion of the weight held on the frame to 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 July 28, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 2019.
- 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.