Safety shoe having metatarsal guard
CA 2277567 A1 · Owner: Lam, Hugo E. · Inventors: Lam, Hugo E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety shoe has a concealed metatarsal guard enclosed with a rigid toe cap, between the, inner and outer layers of the upper of the shoe. The guard defines an arch extending from slightly, above the sole on a lateral side of the wearer's instep to slightly above the sole on the medial side, of the wearer's instep and has a rear impact-absorbing portion having longitudinal slits which, form a series of longitudinal tongues which spread apart to follow the movement of the foot when, the wearer is walking or crouching. The metatarsal guard is further provided with at least one, lateral slit which extends transversely from one side of the sole to facilitate flexing of the, metatarsal …
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 July 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 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.