Bone conduction headset
CA 2448938 A1 · Owner: Atsumi, Tomoya · Inventors: Atsumi, Tomoya; Kobayashi, Kazuji; Fukuda, Mikio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bone conduction headset that is inconspicuous during wearing and is suitable for use when it is desired that the wearing be unnoticed by people around and , that is easy to take on and off, the headset comprising a band extending around the back of the head, hooking portions formed at opposite ends of the band, bone conduction speakers having knobs to be locked to the hooking portions, and eye hooking portions that extends upwardly of the bone conduction speakers to be hooked to the ears during wearing. There are two cases, one in which the ear hooking portions are formed by extending the hooking portions, and the other in which the ear hooking portions are formed on the case of …
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 4, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 4, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2024.
- 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.