Moulding composed of plastic, comprising a fluorescent dye
CA 2496068 A1 · Owner: Albrecht, Eduard · Inventors: Lichtenstein, Hans; Albrecht, Eduard; Ittmann, Guenther
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a molded body made of a plastic matrix that comprises a transparent plastic material. Said molded body contains a soluble fluorescent dye and a scattering agent having a refractive index difference of +/- 0.003 to 0.2 relative to the plastic matrix. The inventive molded body is characterized by the fact that it also contains a white pigment at a concentration of 0.001 to 0.1 percent by weight which has a refractive index , difference of + 0.4 to 1.5 relative to the plastic matrix.
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 July 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 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.
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.