An automatic system for detecting printing faults on metallised strips or any other printing support comprising a predominance of specular colour surfaces
CA 2280522 C · Owner: Toma, Claude · Inventors: Toma, Claude; Porret, Olivier
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This automatic system (1) detects printing faults on metallised strips (3) or any other printing support comprising a predominance of specular colour surfaces. The said system arranged in a blackout casing (2), comprises an arm (30) on which there can move automatically a lighting unit (10) provided with a video camera (55). The camera has a variable-focus lens (56) which, through a semi-transparent filter (57) disposed in an oblique position in front of the lens continuously films a portion of the strip (3) of a format (7) of variable size. The illumination of this strip portion is provided by two direct-illumination flashlights (12, 14), provided primarily to illuminate the non-specular …
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 August 19, 1999 and granted January 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 19, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 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.