Pourable particles of normally tacky plastic material and process for their preparation
CA 2064100 C · Owner: Somers, Marc Stacey · Inventors: Coe, Stephen Wayne; Hooker, Stephen Russell; Mccoskey, Steven Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pourable particles of normally soft and tacky plastic materials are formed by extruding the molten plastic material into contact with a cooling fluid containing a non-sticky material that is compatible with the plastic material cutting the plastic mate-, rial into particles separating these particles from the cooling fluid and contacting these particles with a second compatible nonsticky material.
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 July 26, 1990 and granted March 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2012.
- 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.