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Details for Patent: 4,536,516

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Summary for Patent: 4,536,516

Title: Alkene derivatives
Abstract:Triphenylalkene derivatives, in particular 1-(p-.beta.-dimethylaminoethyoxyphenyl)-1,2-diphenylbut-1-ene, which possess utility as anti-oestrogens.
Inventor(s): Harper; Michael J. K. (Ferney-Voltaire, FR), Richardson; Dora N. (Macclesfield, GB2), Walpole, deceased; Arthur L. (Macclesfield, GB2)
Assignee: Imperial Chemical Industries PLC (London, GB2)
Application Number:06/600,224
Patent Claim Types:
see list of patent claims
Compound; Use;

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Foreign Priority and PCT Information for Patent: 4,536,516

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom34989/62Sep 13, 1962
United Kingdom30755/65Jul 20, 1965

International Patent Family for Patent: 4,536,516

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Belgium637389► Subscribe
Belgium678807► Subscribe
Brazil6352734► Subscribe
Brazil6678265► Subscribe
Switzerland441286► 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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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.