Ear protector with headband
CA 2324534 A1 · Owner: Herzig, Hugo · Inventors: Herzig, Hugo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ear protector is disclosed comprising an elastic headband an earpiece arranged on each side of the headband at least one support element on the headband and, at least one complementary securing member on each earpiece. The securing member engages with the support element in order to hold the earpiece. The headband has an arch part which extends over the area of the skull and which has through-openings for letting air through to the part of the, skull of the user covered by the arch part.
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 October 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2022.
- 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.