US3081320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of purifying phosphatides
Assignee: Baxter International Inc
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Filing: 1960-11-08
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Granted: 1963-03-12
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Expires: 1980-11-08
Abstract
No abstract record available.
Inventors
- 👤 Elenbogen Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:51
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A23; A23D; A23D7/00; A23D7/01; A23D7/011; A23J; A23J7/00; A61K31/00; A61K31/66; A61K31/683; A61K31/685; A61K47/00; A61K47/06; A61K47/24; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/10; C07F9/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD OF PREPARING A SUPERIOR PHOSPHATIDE EMULSIFYING AGENT ESPECIALLY SUITED FOR USE IN PARENTERAL PREPARATIONS WHICH COMPRISES PREPARING A SOLUTION CONTANING THE ALCOHOL-SOLUBLE FRACTION OF COMMERICAL LECITHIN ADDING TO SAID SOLUTION A WATER SOLUBLE BASIC CALCIUM COMPOUND TO FORM AN INSOLUBLE CALCIUM SALT WITH THE PHOSPHATIDIC ACID FRACTION OF SAID ALCOHOL SOLUBLE FRACTION OF COMMERICAL LECITHIN, REMOVING SAID INSOLUBLE SALT AND THEN TREATING SAID SOLUTION TO ISOLATE A SUPERIOR PHOSPHATIDE EMULSIFYING AGENT.
Claim 2
Independent Claim
73 words
THE METHOD OF PREPARING A SUPERIOR PHOSPHATIDE EMULSIFYING AGENT ESPECIALLY SUITED FOR USE IN PARENTERAL PREPARATIONS WHICH COMPRISES PREPARING A SOLUTION CONTANING THE ALCOHOL-SOLUBLE FRACTION OF COMMERICAL LECITHIN ADDING TO SAID SOLUTION A WATER SOLUBLE BASIC CALCIUM COMPOUND TO FORM AN INSOLUBLE CALCIUM SALT WITH THE PHOSPHATIDIC ACID FRACTION OF SAID ALCOHOL SOLUBLE FRACTION OF COMMERICAL LECITHIN, REMOVING SAID INSOLUBLE SALT AND THEN TREATING SAID SOLUTION TO ISOLATE A SUPERIOR PHOSPHATIDE EMULSIFYING AGENT.
References Cited (Backward Citations)
US1555517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |