US3752886A
Expired / Lapsed
US
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Lysolecithins as immunologic adjuvants
Assignee: C.H. Boehringer Sohn AG and Co KG
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Filing: 1971-02-23
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Granted: 1973-08-14
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Expires: 1991-02-23
Abstract
Abstract PHARMACEUTICAL IMMUNOLOGIC ADJUVANT DOSAGE UNIT COMPOSITION CONSISTING ESSENTIALLY OF AN INERT PHARMACEUTICAL CARRIER AND AN EFFECTIVE IMMUNOLOGIC ADJUVANT DOSE OF A LYSOLECITHIN OF THE FORMULA ACYL-O-CH2-CH(-OH)-CH2-O-P(=O)(-O(-))-(CH2)2-N(+)(-CH3)3, HO-CH2-CH(-O-ACYL)-CH2-O-P(=O)(-O(-))-(CH2)2-N(+)(-CH3)3, OR ACYL-O-CH2-CH(-CH2-OH)-O-P(=O)(-O(-))-(CH2)2-N(+)(-CH3)3 WHEREIN ACYL IS ACYL OF AN ALIPHATIC FATTY ACID; AND A METHOD OF ENHANCING ANTIGENICITY AND IMPROVING IMMUNE RESPONSE IN WARM-BLOODED ANIMALS WITH THE AID OF SUCH COMPOSITIONS.
Inventors
- 👤 P Munder
- 👤 H Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:57
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/39; A61K2039/555; A61K2039/55511
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |