Color key
CA 2287086 A1 · Owner: Foser, Hans-Peter · Inventors: Foser, Hans-Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A color key for selecting a proper color for artificial teeth has a base with receiving sockets and insert members having a first end and a second end. The first end is receivable in the sockets. Sample elements are provided whereby each one of the insert elements has one of the sample elements connected to the second end. The sample elements consist of and are produced in the same manner as the dental replacements. The sample elements have a first surface and a second surface, wherein the first surface has a texture matching the texture of a natural tooth and a curvature matching the curvature of a natural tooth. The second surface is flat and smooth.
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 October 21, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 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.