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Generated: February 23, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,871,865

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Summary for Patent: 4,871,865
Title: Tricyclic aromatic compounds
Abstract:The present invention relates to compounds of formula I ##STR1## or a salt, ester or amide thereof; wherein R.sup.1 is --CH.sub.2 --CH.sub.2 --, CH.sub.2 --O-- or --O--CH.sub.2 --; R.sup.2 and R.sup.3 are the same or different and are each hydrogen, C.sub.1-4 alkyl or taken together with the nitrogen comprise a nitrogen-containing heterocyclic ring having four to six ring members; R.sup.4 is a single bond or a C.sub.1-7 bivalent aliphatic hydrocarbon group and may be joined to the aromatic ring system at the 2,3,8 or 9 positions; n is 0 to 3, and their use as anithistamine and antiasthma agents.
Inventor(s): Lever, Jr.; O. William (Skillman, NJ), Leighton; Harry J. (Chapel Hill, NC)
Assignee: Burroughs Wellcome Co. (Research Triangle Park, NC)
Application Number:06/894,306
Patent Claim Types:
see list of patent claims
Compound;

Drugs Protected by US Patent 4,871,865

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Foreign Priority and PCT Information for Patent: 4,871,865

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8520662Aug 17, 1985

International Patents Family Members for US Patent 4,871,865

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 125535 ➤ Sign Up
Austria 51867 ➤ Sign Up
Austria 97401 ➤ Sign Up
Germany 3650357 ➤ Sign Up
Germany 3670290 ➤ Sign Up
Germany 3689311 ➤ Sign Up
European Patent Office 0214779 ➤ Sign Up
European Patent Office 0316022 ➤ Sign Up
European Patent Office 0351887 ➤ Sign Up
Spain 2001519 ➤ Sign Up
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Julphar
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Chubb
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Queensland Health

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