Ventilated footgear
CA 2084293 A1 · Owner: Nordica S.P.A. · Inventors: Pozzobon, Alessandro; Pozzebon, Adolfo; Sartor, Mariano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present ventilated footgear structure includes a mid-sole (2) with which a reinforcement (7) is associated; a first ventilation channel (15) is provided at the reinforcement at the heel region of an upper (12). The mi-sole is furthermore associated with a sole (20) with the interposition therebetween in the heel, region, of at least one resilient element (22 23). The resilient, element furthermore accomodates a pumping element (24) which is connected to the first aspiration channel and to the inside of the upper. An item of footgear is thus obtained which allows to achieve optimum ventilation while walking.
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 27, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2014.
- 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.