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Expired Canadian patentCanada

Retroreflective film

CA 2592633 C · Owner: Matos, Eduardo Da Silva · Inventors: Matos, Eduardo Da Silva; Peck, John D.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A retroreflective film (30) comprising a cover layer (40) a prismatic layer , (42), a reflective layer (44) an adhesive layer (46), and a protective liner (48). The prismatic layer (42) has retroreflective prism elements (60) formed on its rear surface and the reflective layer (44) covers the rear surfaces of the prism elements. The film (30) has an elongation of at least 20% and can be constructed for use with a substrate subjected to a cold-work deformation process, such as stamping, embossing, or pressing.

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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 January 10, 2006 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 10, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 10, 2006
GrantedApril 2, 2013
Term endedJanuary 10, 2026
Patent numberCA 2592633 C
Classification (IPC)G02B5/12 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJan 10, 2006Patent grantedApril 2, 2013Term endedJan 10, 2026

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.