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US3663690A Expired / Lapsed US ⏱️ 0.0 years remaining

Mucolytic composition and method of treatment of broncho-pulmonary disorders therewith

Assignee: CNA Holdings LLC
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Filing: 1969-08-12
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Granted: 1972-05-16
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Expires: 1989-08-12
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Abstract

Abstract PHARMACEUTICALLY ACTIVE COMPOSITIONS FOR TREATMENT OF BRONCHO-PULMONARY DISORDERS CONTAINING AN N-SUBSTITUTED CYSTEINE DERIVATIVE TOGETHER WITH DESOXYRIBONUCLEASE, BOTH OF WHICH ACT AS MUCOLYTIC AGENTS, EACH ON ITS RESPECTIVE SUBSTRATE. IT IS KNOWN THAT CERTAIN COMPOUNDS CONTAINING FREE MERCAPTO GROUPS CAN BE USED AS MUCOLYTIC AGENTS IN THE TREATMENT OF PULMMONARY DISORDERS. SUCH COMPOUNDS LOWER THE VISCOSITY OF RESPIRATORY MUCOUS SECRETIONS BY A MECHANISM INVOLVING THE CLEAVAGE OF DISULFIDE LINKAGES OF MUCORPROTEIN. IT IS ALSO KNOWN THAT DESOXYRIBONUCLEASE TREATMENT OF PULMONARY DISORDERS. SUCH COMPOUNDS RAPIDLY DEGRADES DESOXYRIBONUCLEOPROTEIN (AND DESOXYRIBONUCLEIC ACID), THUS DECREASING THE VISCOSITY OF PURULENT MATERIAL.

Inventors

  • 👤 Hermann J Eichel
  • 👤 Kenneth R Hickey
  • 👤 Frank R Springman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 18:01
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/02; A61K31/00; A61K31/185; A61K31/19; A61K31/195; A61K31/197; A61K31/198; A61K38/00; A61K38/16; A61K38/43; A61K38/46; A61K38/465; C; C12; C12Y; C12Y301/00; C12Y301/21; C12Y301/21001

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-05-16 1975-11-15 1976-05-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-05-16 1979-11-15 1980-05-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-05-16 1983-11-15 1984-05-16 $7700.00 Window Closed / Lapsed

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