A system for reading and authenticating a composite image in a sheeting
CA 2589350 C · Owner: 3M Innovative Properties Company · Inventors: Kenner, Martin A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for reading and authenticating a composite image in a sheeting. A exemplary embodiment of the invention provides a system for reading and authenticating a sheeting including a composite image that appears to the unaided eye to be floating above or below the sheeting or both. The present invention also relates to methods of reading and authenticating a composite image that appears to the unaided eye to be floating above or below the sheeting or both.
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 October 27, 2005 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2025.
- 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.
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.