US2540786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vasoconstrictor amine salts of n'-acyl sulfanilamides
Assignee: Abbott Laboratories
•
Filing: 1944-08-26
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Granted: 1951-02-06
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Expires: 1964-08-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Kirchmeyer
- 👤 Moore Edmond Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:25
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/16; A61K31/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AS A NEW CHEMICAL COMPOUND, A SALT OF AN N1-ACYL-PARA-AMINOBENZENESULFONIMIDE, SAID ACYL GROUP BEING SELECTED FROM THE CLASS CONSISTING OF ACETYL, PROPIONYL AND ACRYLOYL, AND A VASOCONSTRICTOR SELECTED FROM THE CLASS CONSISTING OF EPHEDRINE; DESOXYEPHEDRINE; 3,4-DIHYDROXYPHENYL PROPANOLAMINE; A-HYDROXY-B-METHYL AMINOETHYL-3-HYDROXYBENZENE, AND ADRENALIN, SAID SALT BEING CHARACTERIZED BY BACTERIOSTATIC AND VASOCONSTRICTIVE PROPERTIES, AND FURTHER CHARACTERIZED BY ITS WATER SOLUBILITY, THE AQUEOUS SOLUTIONS OF SAID SALT HAVING A PH APPROACHING THE NEUTRAL POINT.
Claim 2
Dependent Claim
70 words
AS A NEW CHEMICAL COMPOUND, A SALT OF AN N1-ACYL-PARA-AMINOBENZENESULFONIMIDE, SAID ACYL GROUP BEING SELECTED FROM THE CLASS CONSISTING OF ACETYL, PROPIONYL AND ACRYLOYL, AND A VASOCONSTRICTOR SELECTED FROM THE CLASS CONSISTING OF EPHEDRINE; DESOXYEPHEDRINE; 3,4-DIHYDROXYPHENYL PROPANOLAMINE; A-HYDROXY-B-METHYL AMINOETHYL-3-HYDROXYBENZENE, AND ADRENALIN, SAID SALT BEING CHARACTERIZED BY BACTERIOSTATIC AND VASOCONSTRICTIVE PROPERTIES, AND FURTHER CHARACTERIZED BY ITS WATER SOLUBILITY, THE AQUEOUS SOLUTIONS OF SAID SALT HAVING A PH APPROACHING THE NEUTRAL POINT.
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) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |