Porcelain-like doll's head and process and device for making it
CA 2124557 A1 · Owner: Hercher, Christoph · Inventors: Hercher, Christoph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The porcelain-like doll's head consists of a head core of foam material, e.g. styropor, or of a material with a low melting point, e.g. wax. This head core is coated with a fairly uniform layer of cured, porcelain-like cold-moulding compound. The eyes consist of lenticular hollow spherical segments adhesively secured from the outside or spherical glass eyes inserted from inside. To produce the doll's head of the invention, a powdered fast curing cold-moulding compound stirred into water is poured over an at least twopart negative mould of a doll's head to be made. The slightly smaller doll's head core, during pouring forms the, inner mould section held all around in the negative mould at an …
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 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 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.