Method for spraying polymeric compositions with reduced solvent emission and enhanced atomization
CA 2111794 C · Owner: Nielsen, Kenneth A. · Inventors: Nielsen, Kenneth A.; Donohue, Marc D.; Glancy, Charles W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods are presented by which polymeric compositions, such as coating compositions can be, sprayed with compressed fluids such as carbon, dioxide, nitrous oxide or ethane, at higher solids, levels and with finer atomization to give improved spray application quality with reduced emission of solvent.
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 17, 1993 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 17, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 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.