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Serving leading biopharmaceutical companies globally:

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Generated: December 13, 2017

DrugPatentWatch Database Preview

Details for Patent: 3,903,283

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Summary for Patent: 3,903,283

Title: 2-Aminoalkyl tetrahydroquinolines as anti-schistosomal agents
Abstract:Novel 2-aminoalkyl-7-substituted-1,2,3,4,-tetrahydroquinoline compounds, useful as effective anti-schistosomal agents, are disclosed and suitable modes of preparation are described. These compounds all possess either nitro, cyano or halogen substituted at the 7-position of the molecule, in addition to having a methyl, hydroxymethyl, alkoxymethyl or formyl group located at the adjacent 6-position.
Inventor(s): Richards; Hugh Colin (Canterbury, EN)
Assignee: Pfizer, Inc. (New York, NY)
Application Number:05/462,211
Patent Claim Types:
see list of patent claims
Use; Compound;

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Foreign Priority and PCT Information for Patent: 3,903,283

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom26893/67Jun 10, 1967

International Patent Family for Patent: 3,903,283

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Belgium762071► Subscribe
Switzerland498116► Subscribe
Germany1770595► Subscribe
Spain354673► Subscribe
France7680► Subscribe
United Kingdom1166538► Subscribe
Israel30088► Subscribe
JapanS5113158► Subscribe
JapanS5419473► Subscribe
Netherlands155008► 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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Serving leading biopharmaceutical companies globally:

Johnson and Johnson

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