US2867567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing anti-haemophilic globulin
Assignee: National Research Development Corp UK
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Filing: 1956-01-20
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Granted: 1959-01-06
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Expires: 1976-01-20
Abstract
No abstract record available.
Inventors
- 👤 Bidwell Ethel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:31
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/745; C07K14/755; A; A61; A61K; A61K38/00; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A PROCESS FOR THE PREPARATION OF ANTI-HAEMOPHILIC GLOBULIN WHICH COMPRISES ADDING A SALT SELECTED FROM THE GROUP CONSISTING OF PHOSPHATES AND CITRATES TO A SUPERNATANT LIQUID WHILE MAINTAINING THE PH OF SAID LIQUID AT FROM 6.0 TO 7.0 AND DISCONTINUING THE ADDITION OF SAID SALT UPON THE APPEARANCE OF A SMALL BUT DEFINITE PRECIPITATE, THE MAJOR PORTION OF WHICH IS ANTI-HAEMOPHILLIC GLOBULIN, SAID SUPERNATANT LIQUID BEING OBTAINABLE FROM THE BLOOD PLASMA OF UNGULATA ARTIODACTYLA BY CONTACTING SAID PLASMA WITH ALUMINUM HYDROXIDE GEL TO ADSORB PROTHROMBIN AND SEPARATING SAID SUPERNATANT LIQUID FROM THE ALUMINUM HYDROXIDE GEL CONTAINING ABSORBED PROTHROMBIN.
Claim 2
Dependent Claim
98 words
A PROCESS FOR THE PREPARATION OF ANTI-HAEMOPHILIC GLOBULIN WHICH COMPRISES ADDING A SALT SELECTED FROM THE GROUP CONSISTING OF PHOSPHATES AND CITRATES TO A SUPERNATANT LIQUID WHILE MAINTAINING THE PH OF SAID LIQUID AT FROM 6.0 TO 7.0 AND DISCONTINUING THE ADDITION OF SAID SALT UPON THE APPEARANCE OF A SMALL BUT DEFINITE PRECIPITATE, THE MAJOR PORTION OF WHICH IS ANTI-HAEMOPHILLIC GLOBULIN, SAID SUPERNATANT LIQUID BEING OBTAINABLE FROM THE BLOOD PLASMA OF UNGULATA ARTIODACTYLA BY CONTACTING SAID PLASMA WITH ALUMINUM HYDROXIDE GEL TO ADSORB PROTHROMBIN AND SEPARATING SAID SUPERNATANT LIQUID FROM THE ALUMINUM HYDROXIDE GEL CONTAINING ABSORBED PROTHROMBIN.
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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |