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Details for Patent: 4,507,305

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Summary for Patent: 4,507,305

Title: 9-(1,3-Dihydroxy-2-propoxymethyl)guanine as antiviral agent
Abstract:The compound 9-(1,3-dihydroxy-2-propoxymethyl)guanine and the pharmaceutically acceptable salts thereof are useful as antiviral agents.
Inventor(s): Verheyden; Julien P. H. (Los Altos, CA), Martin; John C. (Redwood City, CA)
Assignee: Syntex (U.S.A.) Inc. (Palo Alto, CA)
Application Number:06/473,169
Patent Claim Types:
see list of patent claims
Use; Composition; Compound;

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International Patent Family for Patent: 4,507,305

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina244227► subscribe
Austria15899► subscribe
Australia572086► 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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