Patent US2985564A successfully refreshed from Google Patents.
US2985564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of puromycin
Assignee: Wyeth Holdings LLC
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Filing: 1957-09-03
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Granted: 1961-05-23
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Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Weindling Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:51
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/16; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A METHOD FOR THE PRODUCTION OF PUROMYCIN WHICH COMPRISES PROPAGATING THE MICROORGANISM STREPTOMYCES ALBONIGER UNDER AEROBIC CONDITIONS IN AN AQUEOUS NUTRIENT SOLUTION CONTAINING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYLENEDIAMINE N,N,N1,N1-TETRAALKANOIC ACIDS WHERE THE ALKANOIC MOIETY CONTAINS AT LEAST TWO CARBON ATOMS, CYCLOALKANEDIAMINE N,N,N1,N1-TETRAALKANOIC ACIDS WHERE THE ALKANOIC MOIETY CONTAINS AT LEAST TWO CARBON ATOMS AND AN ALCOHOL OBTAINABLE BY THE REDUCTION OF ONE CARBOXY GROUP IN ANY ONE OF SAID TETRAALKANOIC ACIDS UNTIL SUBSTANTIAL ANTIMICROBIAL ACTIVITY IS IMPARTED TO THE SOLUTION.
Claim 2
Independent Claim
84 words
A METHOD FOR THE PRODUCTION OF PUROMYCIN WHICH COMPRISES PROPAGATING THE MICROORGANISM STREPTOMYCES ALBONIGER UNDER AEROBIC CONDITIONS IN AN AQUEOUS NUTRIENT SOLUTION CONTAINING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYLENEDIAMINE N,N,N1,N1-TETRAALKANOIC ACIDS WHERE THE ALKANOIC MOIETY CONTAINS AT LEAST TWO CARBON ATOMS, CYCLOALKANEDIAMINE N,N,N1,N1-TETRAALKANOIC ACIDS WHERE THE ALKANOIC MOIETY CONTAINS AT LEAST TWO CARBON ATOMS AND AN ALCOHOL OBTAINABLE BY THE REDUCTION OF ONE CARBOXY GROUP IN ANY ONE OF SAID TETRAALKANOIC ACIDS UNTIL SUBSTANTIAL ANTIMICROBIAL ACTIVITY IS IMPARTED TO THE SOLUTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |