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Generated: December 14, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,567,182

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Summary for Patent: 4,567,182

Title: Compounds endowed with immunomodulating activity
Abstract:The invention relates to a series of purine derivatives of formula (I) ##STR1## wherein R is hydrogen or NH.sub.2, n is an integer from 1 to 6, R.sup.1 is one of the following chains: ##STR2## wherein R.sup.2 is the residue of an aminoacid, R.sup.3 is hydrogen or the residue of an oligopeptide and R.sup.4 is OH or the residue of an oligopeptide.
Inventor(s): Ferraris; Paolo C. (Genoa, IT)
Assignee: Co Pharma Corporation s.r.l. (Genoa, IT)
Application Number:06/418,189
Patent Claim Types:
see list of patent claims
Compound; Composition;

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Foreign Priority and PCT Information for Patent: 4,567,182

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Italy24120 A/81Sep 24, 1981
Italy22848 A/82Aug 13, 1982

International Patent Family for Patent: 4,567,182

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria22892► Subscribe
Australia564576► Subscribe
Australia8808082► Subscribe
Canada1258149► Subscribe
Germany3273785► Subscribe
European Patent Office0077460► SubscribeSPC/GB95/020United Kingdom► Subscribe
European Patent Office0077460► Subscribe97C0035Belgium► Subscribe
India156319► Subscribe
Italy1140205► Subscribe
Italy1152372► 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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