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Generated: December 11, 2017

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Details for Patent: 5,045,302

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Summary for Patent: 5,045,302

Title: Ligands and cationic complexes thereof with technetium-99m
Abstract:This invention concerns novel bidentate ligands L having two phosphorus or arsenic atoms. Cationic complexes of the ligands with Technetium-99m, e.g. having the formula [TcO.sub.2 L.sub.2 ].sup.+, are useful for body imaging, particularly myocardial imaging. The ligands have the general formula where Q is phosphorus or Z is a --CC-- or --CCC-- or --COC-- groups, the four groups Y are all C1-C8 saturated hydrocarbon or fluorohydrocarbon with 1-3 ether oxygen atoms.
Inventor(s): Kelly; James D. (Amersham, GB2), Chiu; Kwok W. (Gloucester, GB2), Latham; Ian A. (West Bridgford, GB2)
Assignee: Amersham International plc (Buckinghamshire, GB2)
Application Number:07/329,639
Patent Claim Types:
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Foreign Priority and PCT Information for Patent: 5,045,302

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8808414Apr 11, 1988

International Patent Family for Patent: 5,045,302

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria133956► Subscribe
Canada1336437► Subscribe
China1022633► Subscribe
China1024013► Subscribe
China1031828► Subscribe
China1040373► Subscribe
China1042543► Subscribe
China1079746► Subscribe
Germany68925594► Subscribe
Denmark163289► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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