Patent US2996428A successfully refreshed from Google Patents.
US2996428A
Expired / Lapsed
US
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Process for the manufacture of acth by cmc chromatography
Assignee: Organon NV
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Filing: 1959-11-19
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Granted: 1961-08-15
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Expires: 1979-11-19
Abstract
No abstract record available.
Inventors
- 👤 Jager Evert De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:04
CPC Classifications
A; A61; A61K; A61K38/00; A61K38/16; A61K38/17; A61K38/33; A61K38/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
IN THE PROCESS FOR THE PURIFICATION OF ADRENOCORTICOTROPIC HORMONE PREPARATIONS BY MEANS OF ADSORPTION ON CARBOXYMETHYL CELLULOSE, THE FRACTIONATION STEP COMPRISING SUBSEQUENT ELUTING OF THE ADSORBATE WITH AT LEAST TWO VOLATILE BUFFER SYSTEMS OF DIFFERENT MOLARITY BOTH DIFFERENT FROM THE SYSTEM FROM WHICH THE ACTH IS ADSORBED.
Claim 2
Dependent Claim
47 words
IN THE PROCESS FOR THE PURIFICATION OF ADRENOCORTICOTROPIC HORMONE PREPARATIONS BY MEANS OF ADSORPTION ON CARBOXYMETHYL CELLULOSE, THE FRACTIONATION STEP COMPRISING SUBSEQUENT ELUTING OF THE ADSORBATE WITH AT LEAST TWO VOLATILE BUFFER SYSTEMS OF DIFFERENT MOLARITY BOTH DIFFERENT FROM THE SYSTEM FROM WHICH THE ACTH IS ADSORBED.
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) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |