Laser-sintering powder with titanium dioxide particles, process for its preparation, and moldings produced from this laser-sintering powder
CA 2444710 A1 · Owner: Scholten, Heinz · Inventors: Christoph, Wolfgang; Baumann, Franz-Erich; Scholten, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a sintering powder for selective laser sintering, which comprises polyamide and titanium dioxide particles. The molding formed by using the powder of the invention has marked advantages over conventional products in terms of their appearance arid surface quality stemming from yellowing resistance when exposed to thermal stress during laser sintering. The molding also has mechanical properties, in particular modulus of elasticity markedly improved over conventional molding powders.
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 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 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.