Laser-formed electrical component and method for making same
CA 2086138 C · Owner: Person, Herman R. · Inventors: Person, Herman R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrical component includes a plurality of laminated layers 34, 44, 53, 64, of ferrite material each layer having a conductive coil 40 50, 58, 70, printed thereon. The conductive coil :is formed by first printing a conductive sheet material 36 48, 56, 68 on top of the ferrite layer and then by exposing, the conductive sheet material to a burst of laser energy focused in a predetermined pattern which cuts the coil out of the conductive sheet member.
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 23, 1992 and granted September 14, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2014.
- 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.