Polyurethanes and process for the use thereof
CA 2081423 A1 · Owner: Miles Inc. · Inventors: Kogelnik, Hans-Joachim; Clatty, Jan L. R.; Madan, Sanjeev
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Mo-3683, MD-91-36, NOVEL POLYURETHANES AND PROCESS FOR THE USE THEREOF, ABSTRACT OF THE DISCLOSURE A novel polyurethane prepared by reacting a) a specific polyol or specific polyol blend, b) an organic diamine c), fillers, and d) a specific polyisocyanate is described. The invention also relates to the use of the polyurethane in the preparation of a composite structure wherein the polyurethane is applied to an adhesive coated ceramic enamel layer. The composites are eminently suitable for use in plumbing applications (e.g. as a bathtub).
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 26, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2014.
- 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.