Traction aid
CA 2039611 A1 · Owner: Lippert, Terrence A. · Inventors: Lippert, Terrence A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed therein is a traction aid for use on an item of foot wear, the foot wear having a sole the traction aid, comprising a base for location against the sole the base having, a pair of opposed roughened surfaces one of the roughened, surfaces arranged to lie against the sole and the other surface, arranged to lie against a slippery surface the base having a, pair of opposed ends a pair of strap means each of which is attached to a corresponding end, each of the straps having a free end portion, a pair of fastener means, each of which is attached to a corresponding free end portion, the base and. strap means being relatively thin thereby permitting the aid to fit inside a pocket for …
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 April 2, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 2, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2013.
- 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.