Radiation-sensitive mixture
CA 2023668 A1 · Owner: Roser, Joachim · Inventors: Roser, Joachim; Schulz, Guenther; Seitz, Friedrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
26 - O.Z. 0050/41050, Abstract of the Disclosure: A radiation-sensitive mixture is composed of, (a) a ureido-containing reaction product (b) at least one organic compound which contains one or more carboxyl groups, (c) at least one ethylenically monounsaturated or polyunsaturated organic compound, (d) optionally a photoinitiator or photoinitiator, system and (e) optionally, further additives and auxiliaries wherein component (a) is a reaction product of i) at least one di- or polyisocyanate and ii) at least one organic compound having at least one primary or secondary amino group and, iii) optionally one or more compounds having at least, one hydroxyl group.
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 August 21, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 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.