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Canadian application, no grantCanada

Multilayer substrate

CA 2498356 A1 · Owner: Medtronic Minimed, Inc. · Inventors: Babiracki, Edward B.; Pendo, Shaun; Shah, Rajiv

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A multilayer substrate device formed from a base substrate (12) and alternating metalization layers (14) and dielectric layers (16). Each layer is formed without firing. Vias (44) may extend through one of the dielectric layers (16) such that two metalization layers (14) surrounding the dielectric layers (16) make contact with each other. The vias (44) may be formed by placing pillars (40) on top of a metalization layer (14) forming a dielectric , layer (16) on top of the metalization layer (14) and surrounding the pillars (40), and removing the pillars (40). Dielectric layers (16) may be followed by other dielectric layers (16) and metalization layers (14) may be followed by other …

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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 September 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 15, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 15, 2003
GrantedNo grant recorded
Term endedSeptember 15, 2023
Patent numberCA 2498356 A1
Classification (IPC)H01L21/02 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 15, 2003Term endedSep 15, 2023

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.