Tiles for pedestrian platforms and walkways
CA 2092367 A1 · Owner: Szekely, Kenneth E. J. · Inventors: Szekely, Kenneth E. J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A marking tile is disclosed for use in conjunction, with pedestrian platforms and walkways. The preferred embodiment of the tile has a plurality of buttons or longitudinal strips projecting upwardly therefrom to provide a distinctively textured upper surface. The upward projections are at least partially at a lower height adjacent each exposed edge than elsewhere on the tile. An integral flange vertical, or angled away from the vertical projects downwardly from, each exposed edge. The edges of the tile which are exposed to pedestrian traffic may have a downwardly angled portion such that the height of the upper surface of the tile at the exposed edge is substantially at the height of the …
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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 24, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 24, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2015.
- 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.