US3271253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antibiotic ossamycin and method of preparing same
Assignee: Bristol Myers Co
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Filing: 1964-11-19
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Granted: 1966-09-06
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Expires: 1984-11-19
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Price
- 👤 Schmitz Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:28
CPC Classifications
C; C07; C07G; C07G11/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/898
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A COMPOSITION OF MATTER DESIGNATED AS OSSAMYCIN, SAID COMPOSITION BEING CHARACTERIZED BY READY SOLUBILITY IN ETHYL ALCOHOL AND ETHYL ACETATE, AND SLIGHTLY SOLUBILITY IN WATER, AND EXHIBITING IN THE PURE STATE WHITE CRYSTALS, A MELTING POINT OF 175-180*C., A MOLECULAR WEIGHT OF 917 BY THERMOELECTRIC DETERMINATION, AN ELEMENTAL ANALYSIS AS FOLLOWS: 64.70% CARBON, 9.45% HYDROGEN, 1.50% NITROGEN AND 24.35% OXYGEN (BY DIFFERENCE), AN OPTICAL ROTATION OF (A)D25=+8 (C.=1 IN CHLOROFORM), AN ULTRAVIOLET ABSORPTION SPECTRUM IN CHLOROFORM EXHIBITING A MAXIMUM OF 244 MU, AN ULTRAVIOLET SPECTRUM IN CONCENTRATED SULFURIC ACID EXHIBITING A MAXIMA AT 385 AND 282 MU WITH ABSORPTIVITIES OF 6.0 AND 26.0 RESPECTIVELY, AND AN INFRARED ABSORPTION SPECTRUM IS POTASSIUM BROMIDE AS SHOWN IN THE DRAWING.
Claim 2
Dependent Claim
117 words
A COMPOSITION OF MATTER DESIGNATED AS OSSAMYCIN, SAID COMPOSITION BEING CHARACTERIZED BY READY SOLUBILITY IN ETHYL ALCOHOL AND ETHYL ACETATE, AND SLIGHTLY SOLUBILITY IN WATER, AND EXHIBITING IN THE PURE STATE WHITE CRYSTALS, A MELTING POINT OF 175-180*C., A MOLECULAR WEIGHT OF 917 BY THERMOELECTRIC DETERMINATION, AN ELEMENTAL ANALYSIS AS FOLLOWS: 64.70% CARBON, 9.45% HYDROGEN, 1.50% NITROGEN AND 24.35% OXYGEN (BY DIFFERENCE), AN OPTICAL ROTATION OF (A)D25=+8 (C.=1 IN CHLOROFORM), AN ULTRAVIOLET ABSORPTION SPECTRUM IN CHLOROFORM EXHIBITING A MAXIMUM OF 244 MU, AN ULTRAVIOLET SPECTRUM IN CONCENTRATED SULFURIC ACID EXHIBITING A MAXIMA AT 385 AND 282 MU WITH ABSORPTIVITIES OF 6.0 AND 26.0 RESPECTIVELY, AND AN INFRARED ABSORPTION SPECTRUM IS POTASSIUM BROMIDE AS SHOWN IN THE DRAWING.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |