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Details for Patent: 5,418,226

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Summary for Patent: 5,418,226

Title: Monoquaternary 2,16-bispiperidinylandrostane derivatives
Abstract:Monoquaternary 2,16-bispiperidinylandrostane neuromuscular blocking derivatives having the formula: ##STR1## wherein R.sub.1 is ethyl; R.sub.2 is methyl or allyl; and X.sup.- is a pharmaceutically acceptable anion; or pharmaceutically acceptable salts thereof.
Inventor(s): Sleigh; Thomas (Wishaw, GB6), Carlyle; Ian C. (Hamilton, GB6), Muir; Alan W. (Ravenstruther, GB6)
Assignee: Akzo N.V. (Arnhem, NL)
Application Number:08/048,539
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;
Patent PDF download available with subscription

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Foreign Priority and PCT Information for Patent: 5,418,226

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
92303612Apr 22, 1992

International Patent Family for Patent: 5,418,226

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria145918<disabled in preview>
Australia3703093<disabled in preview>
Australia662277<disabled in preview>
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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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