Method for producing patterned shaped article
CA 2090368 A1 · Owner: Watanabe, Hideo · Inventors: Watanabe, Hideo; Uchida, Hiroshi; Onuki, Mituhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A patterned shaped article is produced by a method which includes the steps of supplying a first material onto a given surface until the first material forms a layer of predetermined thickness removing part of, the layer to form at least one concave portion in the layer, filling the at least one concave portion with at least one kind of second material different in color and quality from the first material, and causing the first and second materials to set into an integral mass. When the first material is dry, the second material may be either dry or wet. When the first material is wet the second, material is dry and the moisture of the first wet material is absorbed before the step of …
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 February 25, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2015.
- 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.