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US3767653A Expired / Lapsed US ⏱️ 0.0 years remaining

Thiazines

Assignee: ER Squibb and Sons LLC
•
Filing: 1971-06-28
•
Granted: 1973-10-23
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Expires: 1991-06-28
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Abstract

Abstract ANTI-INFLAMMATORY AGENTS OF THE FORMULA (B-ALK-N<(-CO-CH(-Z-R)-(Y)N-C(=)-A=A-A=A-C(=)-))-(X)M WHERE BOTH C''S ARE JOINED ALK MAY BE A STRAIGHT OR BRANCHED CARBON CHAIN OF UP TO 6 CARBON ATOMS; AND B MAY BE A BASIC NITROGEN-CONTAINING RADICAL; AND PHARMACEUTICALLY ACCEPTABLE ACID-ADDITION SALTS THEREOF; N OXIDES AND PHARMACEUTICALLY ACCEPTABLE ACID-ADDITION SALTS THEREOF, AND QUATERNARY AMMONIUM SALTS THEREOF. >C(-R'')-OOC-R WHEREIN R'' IS HYDROGEN, VINYL, ALLYL OR R, OR -CO-, -C(-OH)(-R'')- WHEREIN X MAY BE HYDROGEN, HALOGEN, ALKYL, HALOALKYL, HALOALKOXY, HALOALKYLTHIO, ALKOXY, HYDROXY, ALKYLTHIO, NITRO, ALKYLSULFONYL, AMINO, ALKANOYLAMINO OR MONO- OR DIALKYLAMINO WHEREIN ANY OF THE FOREGOING ALKYL OR SUBSTITUTED ALKYL RADICALS CONTAIN UP TO 8 CARBON ATOMS; M MAY BE 0, 1, 2, 3 OR 4; EACH A MAY BE CARBON, BUT ONE A MAY BE NITROGEN IN ANY POSITION PROVIDED N IS 1; Y MAY BE SULFUR, SULFOXIDE, SULFONYL, OR OXYGEN; N MAY BE 0 TO 1; R MAY BE A STRAIGHT OR BRANCHED ALKYL OF UP TO 8-CARBON ATOMS CYCLOALKL OF FROM 3 TO 8 CARBON ATOMS, PHENYL XSUBSTITUTED PHENYL, PYRIDYL, THIENYL, FURYL, NAPHTHYL, ALKYLPHENYL OR ALKENYLPHENYL WHEREIN THE ALKYL OR ALKENYL RADICAL MAY CONTAIN UP TO 4 CARBON ATOMS EITHER STRAIGHT CHAIN OR BRANCHED; Z MAY BE

Inventors

  • 👤 J Krapcho

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 13:24
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/04; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/535; A61K31/54; C07D209/00; C07D209/02; C07D209/04; C07D209/30; C07D209/32; C07D209/34; C07D265/00; C07D265/28; C07D265/34; C07D265/36; C07D265/38; C07D279/00; C07D279/10; C07D279/14; C07D279/16; C07D279/18; C07D279/22; C07D417/00; C07D417/02; C07D417/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3471481A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-22 1977-04-23 1977-10-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-22 1981-04-23 1981-10-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-22 1985-04-23 1985-10-23 $7700.00 Window Closed / Lapsed

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