Security threads having at least two security detection features and security papers employing same
CA 2187080 C · Owner: Crane, Timothy T. · Inventors: Crane, Timothy T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A visually verifiable, and machine-readable thread having at least two, security detection means located thereon, where, a first security detection means (14) comprises a, machine-readable repeating pattern and where a second, security detection means (18) comprises visually, verifiable metal-formed indicia (20). Such security threads are suitable for use with security documents such as banknotes and the like, labels and any other documents or means of identification used for purposes which make the verification of the authenticity of each specimen desirable at least once in its lifetime.
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 February 15, 1995 and granted June 15, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2017.
- 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.