Moldable compositions
CA 2328628 A1 · Owner: Schoenheider, Cecile J. · Inventors: Schoenheider, Cecile J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to polymeric thermoplastic moldable compositions comprising poly(alkylene carbonates), which are useful in manufacturing of articles, which may be manipulated and shaped by their user but regain their shape , after, distortion. These compositions are free from toxic compounds and have a glass transition temperature from about 15°C to about 132°C. These compositions are useful, in manufacturing of articles such as toys utensils to convey solids or , liquids to the mouth, soothing articles (i.e. teething rings and pacifiers) and articles which support, food (i.e. candy/confection sticks or holders.) They are most useful in manufacturing, of children's toys and …
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 December 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2022.
- 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.