Security of objects or documents
CA 2085113 C · Owner: Tel, Teunis · Inventors: Tel, Teunis; Tel, Teunis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An object or document (10) secured against fraud a system for, securing said object or document (10) against fraud and a method of, putting into public circulation and checking said object or document (10) which is provided with at least one identifying mark (14 16, 18), and at least one confined pattern (20) of fibres (2) which is incorporated in a surface (12) of the object or document the fibres being fixed in an, arbitrary manner relative to each other and he surface. The pattern is made up of a piece of nonwoven material embedded in a transparent material within the boundaries of the surface. The system comprises scanning means (22) for optically scanning the entire pattern (20) at an …
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 June 14, 1991 and granted March 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 14, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 2013.
- 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.