US4334058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rutin poly(H--)sulfate salts and related compounds
Assignee: Wyeth Holdings LLC
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Filing: 1980-08-25
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Granted: 1982-06-08
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Expires: 2000-08-25
Abstract
Abstract Rutin poly(H--)sulfate and salts thereof useful as complement inhibitors.
Inventors
- 👤 Vijay G. Nair
- 👤 Seymour Bernstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:13
CPC Classifications
C; C07; C07D; C07D311/00; C07H; C07H17/00; C07H17/04; C07H17/06; C07H17/065; C07H17/07
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
45 words
A rutin poly(H--)sulfate of the formula: ##STR4## wherein each R is selected from the group consisting of hydrogen and --SO 3 A; wherein A is a pharmaceutically acceptable salt cation; with the proviso that at least six of the R groups are --SO 3 A.
Claim 2
Dependent Claim
45 words
A rutin poly(H--)sulfate of the formula: ##STR4## wherein each R is selected from the group consisting of hydrogen and --SO 3 A; wherein A is a pharmaceutically acceptable salt cation; with the proviso that at least six of the R groups are --SO 3 A.
Claim 3
Dependent Claim
11 words
The rutin poly(H--)sulfate according to claim 1, rutin poly(H--)sulfate, trimethylamine salt.
Claim 4
Dependent Claim
11 words
The rutin poly(H--)sulfate according to claim 1, rutin poly(H--)sulfate, sodium salt.
Claim 5
Dependent Claim
10 words
The rutin poly(H--)sulfate according to claim 1, rutin deca(H--sulfate)sodium salt.
Claim 6
Dependent Claim
10 words
The rutin poly(H--)sulfate according to claim 1, rutin nona(H--sulfate)sodium salt.
Claim 7
Dependent Claim
18 words
A composition of matter comprising a mixture of two or more of the compounds defined in claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |