US4504474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic phosphoglycerides possessing platelet activating properties
Assignee: The University of Texas System
•
Filing: 1982-02-18
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Granted: 1985-03-12
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Expires: 2002-02-18
Abstract
Abstract Novel synthetic glyceryl-phosphorylcholine compounds are prepared having biological activity paralleling that of naturally generated platelet activating factor.
Inventors
- 👤 Donald J. Hanahan
- 👤 R. Neal Pinckard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:32
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
50 words
A substantially pure glyceryl acyl phospholipid compound represented by the formula: ##STR7## wherein x denotes the integer 15 or 17; R 1 is methyl, or ethyl; and R 2 is an amine selected from the group consisting of ##STR8## --CH 2 CH 2 NH 2 and pharmaceutically acceptable salts thereof.
Claim 2
Dependent Claim
50 words
A substantially pure glyceryl acyl phospholipid compound represented by the formula: ##STR7## wherein x denotes the integer 15 or 17; R 1 is methyl, or ethyl; and R 2 is an amine selected from the group consisting of ##STR8## --CH 2 CH 2 NH 2 and pharmaceutically acceptable salts thereof.
Claim 3
Dependent Claim
21 words
A composition comprising an effective platelet activating amount of the compound recited in claim in combination with a pharamaceutically acceptable diluent.
References Cited (Backward Citations)
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US3694473A
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US3678137A
Cited
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Cited
US4086257A
Cited
JPS54106430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |