Secondary excitation dielectric waveguide sensor and its use in immunoassays
CA 1295147 C · Owner: Corning Glass Works · Inventors: Westwig, Ralph Anton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention comprises a novel doped dielectric waveguide structure that is useful in spectrophotometric assays of analytes in fluid. The dielectric waveguide has a specifically doped core having several concentric core layers. The core is doped with a compound which can interact with a primary signal radiation from an analyte in solution so as to form an amplified secondary signal radiation.
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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
- Granted February 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 2009.
- 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.