US3345262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antibiotic cirolerosus and process for producing the same
Assignee: Pharmacia and Upjohn Co
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Filing: 1964-03-16
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Granted: 1967-10-03
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Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 Curtis E Meyer
- 👤 Bijoy K Bhuyan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:25
CPC Classifications
C; C07; C07G; C07G11/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
AN ANTIBIOTIC, ASSAYING AT LEAST 2.5 MCG./MG. OF CIROLEROSUS, A COMPOUND WHICH (A) IS EFFECTIBVE IN INHIBITING THE GROWTH OF GRAM-POSITIVE AND GRAM-NEGATIVE BACTERIA; (B) IS SOLUBLE IN METHANOL, ETHANOL ETHYL ACETAE, HALOGENATED HYDROCARBONS, ACIDS, BENZENE, GLYCOLS; SLIGHTLY SOLUBLE IN ETHER; AND RELATIVELY INSOLUBLE IN PARAFFIN HYDROCARBONS; AND IN ITS ESSENTIALLY PURE FORM (C) HAS THE FOLLOWING ELEMENTAL ANALYSIS: C, 60,90, 60.73;H, 7.08, 6.71;O,28.46;N,2.80; (D) HAS A MOLECULAR WEIGHT OF 974+30 (FROM EQ. WT.); (E) HAS A CHARACTERISTIC ULTRAVIOLET ABSORPTION SPECTRUM AS FOLLOWS:
Claim 2
Dependent Claim
83 words
AN ANTIBIOTIC, ASSAYING AT LEAST 2.5 MCG./MG. OF CIROLEROSUS, A COMPOUND WHICH (A) IS EFFECTIBVE IN INHIBITING THE GROWTH OF GRAM-POSITIVE AND GRAM-NEGATIVE BACTERIA; (B) IS SOLUBLE IN METHANOL, ETHANOL ETHYL ACETAE, HALOGENATED HYDROCARBONS, ACIDS, BENZENE, GLYCOLS; SLIGHTLY SOLUBLE IN ETHER; AND RELATIVELY INSOLUBLE IN PARAFFIN HYDROCARBONS; AND IN ITS ESSENTIALLY PURE FORM (C) HAS THE FOLLOWING ELEMENTAL ANALYSIS: C, 60,90, 60.73;H, 7.08, 6.71;O,28.46;N,2.80; (D) HAS A MOLECULAR WEIGHT OF 974+30 (FROM EQ. WT.); (E) HAS A CHARACTERISTIC ULTRAVIOLET ABSORPTION SPECTRUM AS FOLLOWS:
Claim 3
Dependent Claim
30 words
A PROCESS WHICH COMPRISES CULTIVATING STREPTOMYCES BELLUS VAR. CIROLEROSUS IN AN AQUEOUS NUTRIENT MEDIUM UNDER AEROBIC CONDITIONS UNTIL SUBSTANTIAL ANTIBIOTIC ACTIVITY IS IMPARTED TO SAID MEDIUM BY PRODUCTION OF CIROLEROSUS.
Claim 4
Dependent Claim
30 words
A PROCESS WHICH COMPRISES CULTIVATING STREPTOMYCES BELLUS VAR. CIROLEROSUS IN AN AQUEOUS NUTRIENT MEDIUM UNDER AEROBIC CONDITIONS UNTIL SUBSTANTIAL ANTIBIOTIC ACTIVITY IS IMPARTED TO SAID MEDIUM BY PRODUCTION OF CIROLEROSUS.
References Cited (Backward Citations)
US3118812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |