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Patent US3060102A successfully refreshed from Google Patents.
US3060102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of purifying streptokinase
Assignee: Ortho Pharmaceutical Corp
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Filing: 1960-06-08
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Granted: 1962-10-23
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Expires: 1980-06-08
Abstract
No abstract record available.
Inventors
- 👤 Heron O Singher
- 👤 Egan Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:48
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/195; C07K14/315; C07K14/3153; Y; Y10; Y10S; Y10S435/00; Y10S435/814; Y10S435/816
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF PURIFYING STREPTOKINASE WHICH COMPRISES SUSPENDING STREPTOKINASE IN PYROGEN FREE DISTILLED WATER, ADDING A QUANTITY OF SODIUM TETRA-META-PHOSPHATE SUFFICIENT TO FORM A COMPLEX WITH SUBSTANTIALLY ALL THE STREPOKINASE, ADJUSTING THE PH OF THE SOLUTION SO OBTAINED TO 5.0 THEREBY PRECIPITATING FROM THE SOLUTION IMPURITIES ASSOCIATED WITH THE STREPTOLINASE, REMOVING FROM THE SOLUTION ANY PRECIPITATE THAT IS FORMED, ADJUSTING THE PH OF SAID SOLUTION TO 4.2 AND RECOVERING FROM SOLUTION THE PURIFIED STREPTOKINASE THAT IS PRECIPITATED AT PH 4.2.
Claim 2
Independent Claim
80 words
A METHOD OF PURIFYING STREPTOKINASE WHICH COMPRISES SUSPENDING STREPTOKINASE IN PYROGEN FREE DISTILLED WATER, ADDING A QUANTITY OF SODIUM TETRA-META-PHOSPHATE SUFFICIENT TO FORM A COMPLEX WITH SUBSTANTIALLY ALL THE STREPOKINASE, ADJUSTING THE PH OF THE SOLUTION SO OBTAINED TO 5.0 THEREBY PRECIPITATING FROM THE SOLUTION IMPURITIES ASSOCIATED WITH THE STREPTOLINASE, REMOVING FROM THE SOLUTION ANY PRECIPITATE THAT IS FORMED, ADJUSTING THE PH OF SAID SOLUTION TO 4.2 AND RECOVERING FROM SOLUTION THE PURIFIED STREPTOKINASE THAT IS PRECIPITATED AT PH 4.2.
References Cited (Backward Citations)
US2726235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |