Patent US3244590A successfully refreshed from Google Patents.
US3244590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyenic compounds and procedures related thereto
Assignee: Rutgers Research and Educational Foundation
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Filing: 1960-12-23
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Granted: 1966-04-05
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Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 Carl P Schaffner
- 👤 Borowski Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:03
CPC Classifications
C; C07; C07H; C07H17/00; C07H17/04; C07H17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN N-ACYLATED COMPOUND OF A HEPTAENE MACROLIDE ANTIFUNGAL ANTIBIOTIC SELECTED FROM THE CLASS CONSISTING OF CANDIDIN, AMPHOTERICIN B, TRICHOMYCIN, CANDICIDIN AND PERIMYCIN, SAID ANTIBIOTIC HAVING AMINO CONTENT WHICH CONSISTS SOLELY OF FROM ONE TO TWO -NH2 RADICALS, SAID COMPOUND CONSISTING OF SAID ANTIBIOTIC AND N-ACYL SUBSTITUTION THEREIN, SAID COMPOUND BEING FREE OF ACYL SUBSTITUTION OTHER THAN N-ACYL SUBSTITUTION, AND SAID N-ACYL SUBSTITUTION BEING INCORPORATED IN THE SAID -NH2 CONTENT OF THE ANTIBIOTIC, AND SAID N-ACYL SUBSTITUTION BEING ACYL SELECTED FROM ALIPHATIC AND AROMATIC, MONOCARBOXYLIC DICARBOXYLIC ACIDS.
Claim 2
Dependent Claim
86 words
AN N-ACYLATED COMPOUND OF A HEPTAENE MACROLIDE ANTIFUNGAL ANTIBIOTIC SELECTED FROM THE CLASS CONSISTING OF CANDIDIN, AMPHOTERICIN B, TRICHOMYCIN, CANDICIDIN AND PERIMYCIN, SAID ANTIBIOTIC HAVING AMINO CONTENT WHICH CONSISTS SOLELY OF FROM ONE TO TWO -NH2 RADICALS, SAID COMPOUND CONSISTING OF SAID ANTIBIOTIC AND N-ACYL SUBSTITUTION THEREIN, SAID COMPOUND BEING FREE OF ACYL SUBSTITUTION OTHER THAN N-ACYL SUBSTITUTION, AND SAID N-ACYL SUBSTITUTION BEING INCORPORATED IN THE SAID -NH2 CONTENT OF THE ANTIBIOTIC, AND SAID N-ACYL SUBSTITUTION BEING ACYL SELECTED FROM ALIPHATIC AND AROMATIC, MONOCARBOXYLIC DICARBOXYLIC ACIDS.
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |