Method for the characterisation of lacquer coated plastic surfaces
CA 2270658 A1 · Owner: Herberts Gmbh & Co. Kg · Inventors: Rupieper, Paul; Cramm, Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for determining the visual effect of lacquer coatings on plastic surfaces, in which one or more successive lacquer layers is/are each applied onto the entire surface of a substrate consisting of a plastic test sheet joined with a metal test sheet and dried or cured wherein the two test sheets are joined together in such a manner as to form a common plane, or planes arranged parallel to or optionally partially overlapping each other one of the lacquer layers is applied in the form of a wedge with a layer thickness gradient, and, on the lacquer coated substrate surface obtained in this manner one or more, surface properties influencing the visual impression is/are then measured at …
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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 April 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2021.
- 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.