Bag including an encodable device responsive to remote interrogation and an associated fabrication method
CA 2109581 C · Owner: Sealed Air Limited · Inventors: Todman, Victor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A security bag includes an electronic memory device (11) which may be read remotely using non-visual means. A method of processing such a bag comprises the steps of encoding information onto the tag in non-visible form, retaining the device on or in the bag, and subsequently retrieving the information. A variant provides the memory means of the electronic tag and the reading means being separately located and connected across the seal means of the bag by a conductor (11c) designed to break upon attempted opening of the bag.
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 March 31, 1993 and granted November 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 31, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2015.
- 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.