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Generated: December 16, 2017

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Details for Patent: 4,179,507

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Summary for Patent: 4,179,507

Title: Quarternary ammonium compounds
Abstract:Compounds of formula (I): ##STR1## wherein Z.sup.1 and Z.sup.2 are the same or different and each represents a methylenedioxy substituent, or up to three methoxy substituents; R.sup.2 and R.sup.3 are the same or different and each is alkyl having 1-3 carbon atoms, prop-2-enyl or prop-2-ynyl; R.sup.4 and R.sup.5 are the same or different and each is a benzyl or phenethyl group wherein the phenyl ring is optionally substituted by one or more of halogen, alkoxy having 1 to 3 carbon atoms and methylenedioxy; A and B are the same or different and each is an alkylene radical containing 1,2, or 3 carbon atoms; L is an alkylene chain having from 2 to 12 carbon atoms or is a group --L.sup.1.0.L.sup.2 -- wherein each of L.sup.1 and L.sup.2 is alkylene having at least two carbon atoms and taken together L.sup.1 and L.sup.2 having up to 11 carbon atoms; and X.sup.- is an anion; may be used to effect neuromuscular paralysis in mammals.
Inventor(s): Stenlake; John B. (Glasgow, GB6), Waigh; Roger D. (Wilmslow, GB2), Dewar; George H. (Bath, GB2), Urwin; John (South Shields, GB2), Dhar; Nirmal C. (Glasgow, GB6)
Assignee: Burroughs Wellcome Co. (Research Triangle Park, NC)
Application Number:05/749,174
Patent Claim Types:
see list of patent claims
Compound; Composition; Formulation; Use;

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Foreign Priority and PCT Information for Patent: 4,179,507

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom50589/75Dec 10, 1975
United Kingdom45028/76Oct 29, 1976

International Patent Family for Patent: 4,179,507

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria365579► Subscribe
AustriaA908476► Subscribe
Australia2037576► Subscribe
Australia506657► Subscribe
Belgium849241► Subscribe
Canada1075241► Subscribe
Switzerland625223► Subscribe
Cyprus1217► Subscribe
German Democratic Republic128320► Subscribe
Germany2655883► 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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