Method of verifying correct positioning of a safety helmet and a safety helmet
CA 2290115 A1 · Owner: Gallant, Gina May · Inventors: Gallant, Gina May
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of verifying correct positioning of a safety helmet and a safety helmet modified in accordance with the teachings of the method. A helmet is provided having a body with a head receiving cavity. The helmet is modified by positioning within the head receiving cavity of the helmet at least two contact members in spaced relation. The positioning of the at least two contact members is such that a head positioned in the head receiving cavity will only come in contact with all of the contact members when the helmet fits and is properly positioned on the head. The contact members are electrically coupled with a position indicator such as a, light, that illuminates to provide confirmation …
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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 November 15, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2021.
- 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.