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Generated: December 14, 2017

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Details for Patent: 3,686,412

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Summary for Patent: 3,686,412

Title: COMPOSITIONS CONTAINING BIS-CHROMONYL COMPOUNDS FOR INHIBITING ANTIGEN-ANTIBODY REACTIONS
Abstract:Pharmaceutical compositions comprising a pharmaceutical carrier and a bis-chromonyl compound of the formula ##SPC1## And therapeutically acceptable salts, esters and amides thereof, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each selected from the group consisting of hydrogen, halogen, hydroxy, lower alkyl, lower alkoxy, hydroxyloweralkyl, haloloweralkyl, hydroxyloweralkoxy, loweralkoxyloweralkoxy and carboxyloweralkoxy; and X is selected from the group consisting of saturated and unsaturated, straight and branched hydrocarbon chains which may be interrupted by a member selected from the group consisting of benzene rings, dioxanyl, oxygen atoms and carbonyl groups, and which may be substituted by a member selected from the group consisting of halogen atoms, hydroxy groups and lower alkoxy groups are active to inhibit antigen-antibody reaction.
Inventor(s): Fitzmaurice; Colin (Holmes Chapel, EN), Lee; Thomas Brian (Holmes Chapel, EN)
Assignee:
Application Number:05/077,711
Patent Claim Types:
see list of patent claims
Composition; Formulation; Delivery; Use;

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Foreign Priority and PCT Information for Patent: 3,686,412

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom12626/65Mar 25, 1965
United Kingdom52414/65Dec 9, 1965

International Patent Family for Patent: 3,686,412

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria269138► Subscribe
Belgium678175► Subscribe
Switzerland476720► Subscribe
Switzerland481912► Subscribe
Switzerland484895► Subscribe
Switzerland486445► Subscribe
Switzerland488688► Subscribe
Switzerland495978► Subscribe
Switzerland504432► Subscribe
Germany1543579► 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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Accenture
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