Protective helmet with positioning knobs adjustable to the head size
CA 2200351 A1 · Owner: Petzl, Paul · Inventors: Petzl, Paul; Hede, Jean-Marc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A protective helmet with a crown 12 made of synthetic material comprises a fixing device 13 with a strap and means for adjusting the head-band size. The wall of the crown is drilled in the direction of the thickness with a plurality of orifices 14, 16 for housing positioning knobs 20 22 adjustable between a first, adjustment position corresponding to a large head-band size in which said, knobs are inserted inside the orifices 14 16, and a second adjustment, position corresponding to a small head-band size in which said knobs are, salient towards the inside of the crown 12 each positioning knob having, gripping means accessible from outside the crown 12 to press the internal bearing face 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 March 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 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.