Patent US2985560A successfully refreshed from Google Patents.
US2985560A
Expired / Lapsed
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Process for the manufacture of adrenocorticotropic hormone preparations by carboxymethylcellulose chromatography
Assignee: Organon NV
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Filing: 1957-06-24
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Granted: 1961-05-23
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Expires: 1977-06-24
Abstract
No abstract record available.
Inventors
- 👤 Homan Jan Daniel Herman
- 👤 Ederzeel Laurens Pieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:19
CPC Classifications
A; A61; A61K; A61K38/00; A61K38/16; A61K38/17; A61K38/33; A61K38/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
PROCESS FOR THE MANUFACTURE OF PURIFIED ACTH PREPARATIONS WHICH COMPRISES ADSORBING ACTH ON AN ADSORBENT CONSISTING ESSENTIALLY OF CARBOXYMETHYLCELLULOSE IN AN AQUEOUS SYSTEM AT A PH BETWEEN ABOUT 2.5 AND ABOUT 8.0, ELUTING THE ACTH FROM SAID CARBOXYMETHYLCELLULOSE AT A PH WHICH DIFFERS FROM THAT OF THE ADSORPTION AND WHICH IS BETWEEN ABOUT 0.1 AND ABOUT 8.5, THE SAID CARBOXYMETHYLCELLULOSE BEING INSOLUBLE AT THE PH VALUES AT WHICH THE ADSORPTION AND THE ELUTION TAKE PLACE.
Claim 2
Dependent Claim
75 words
PROCESS FOR THE MANUFACTURE OF PURIFIED ACTH PREPARATIONS WHICH COMPRISES ADSORBING ACTH ON AN ADSORBENT CONSISTING ESSENTIALLY OF CARBOXYMETHYLCELLULOSE IN AN AQUEOUS SYSTEM AT A PH BETWEEN ABOUT 2.5 AND ABOUT 8.0, ELUTING THE ACTH FROM SAID CARBOXYMETHYLCELLULOSE AT A PH WHICH DIFFERS FROM THAT OF THE ADSORPTION AND WHICH IS BETWEEN ABOUT 0.1 AND ABOUT 8.5, THE SAID CARBOXYMETHYLCELLULOSE BEING INSOLUBLE AT THE PH VALUES AT WHICH THE ADSORPTION AND THE ELUTION TAKE PLACE.
References Cited (Backward Citations)
CA532438A
Cited
US2669536A
Cited
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 |