Ferromagnetic fibers having use in electronical article surveillance and method of making same
CA 2006223 C · Owner: Pitney Bowes Inc. · Inventors: Rudkowski, Piotr Z.; Strom-Olsen, John O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ferromagnetic fiber has been fabricated that has particular use in the field of electronic article surveillance (EAS). The ferromagnetic fiber is produced by using a spinning disk type of device that engages a bath of molten alloy having the desired compositions for the fiber. The use of ferromagnetic fibers has resulted in the ability to produce EAS markers of such a small length that they can be dispensed using a commercial. labeler.
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 December 20, 1989 and granted August 25, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2011.
- 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.