Pneumatic inflating device contained entirely within shoe sole
CA 2463366 A1 · Owner: Doyle, Harold S. · Inventors: Doyle, Harold S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pneumatic inflation device disposed within the sole of a shoe (100) and comprising a pump (12) which is entirely within the sole a pump actuator , (210) which is entirely within the sole when not in use and an inflatable , bladder (57) which is entirely within the sole and is operatively connected to the pump. Such a device can include a mechanism (234) to lock the pump actuator within the sole such that the mechanism's cap (200) is flush with the outer wall (220) of the sole and finger-operable to allow the shoe-wearer to easily operate the inflation device.
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 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 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.