Crystalline aluminosilicate zeolitic composition: uzm-4m
CA 2483926 A1 · Owner: Uop Llc · Inventors: Wilson, Stephen T.; Wilson, Ben A.; Lewis, Gregory J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A crystalline aluminosilicate zeolite identified as UZM-4M has been synthesized. This zeolite is obtained by treating a UZM-4 zeolite with a fluorosilicate salt to obtain a zeolite having the empirical formula:M1an+Al1xExSiyOzwhere M1 is an alkali metal, alkaline earth metal rare earth metal, hydronium ion or ammonium ion E can be gallium, iron, boron, indium and mixtures thereof and has a Si/Al ratio of 1.5 to 10.
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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 May 8, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2025.
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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.