Retroreflective sheeting with embedded retroreflective elements in a binder layer with shape memory and method for forming the same
CA 2266901 A1 · Owner: Toriumi, Naoyuki · Inventors: Toriumi, Naoyuki; Hata, Michiru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for forming retroreflective sheeting comprising a binder layer having a first surface with protrusions thereon and a plurality of retroreflective elements partially embedded in the surface wherein the method comprises , forming the binder layer in a first profile embedding the retroreflective , elements therein and then activating that binder layer such that it is restored to the first profile via shape memory.
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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 October 1, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 1, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 2019.
- 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.