US4266077A
Expired / Lapsed
US
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Naphthalenetetrayltetrakis(sulfonylimino)-aryl multicarboxylic acids and salts thereof
Assignee: Wyeth Holdings LLC
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Filing: 1979-12-26
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Granted: 1981-05-05
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Expires: 1999-12-26
Abstract
Abstract Naphthalenetetrayltetrakis(sulfonylimino)-aryl multicarboxylic acids and salts thereof useful as complement inhibitors.
Inventors
- 👤 Ransom B. Conrow
- 👤 Seymour Bernstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:05
CPC Classifications
C; C07; C07C; C07C311/00; C07C311/15; C07C311/21; C07C309/00; C07C309/78; C07C309/86
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
45 words
A compound of the formula: ##STR3## wherein R 1 is COOR 3 ; wherein R 3 is selected from the group consisting of hydrogen and a pharmaceutically acceptable salt cation; and R 2 is selected from the group consisting of hydrogen and COOR 3 .
Claim 2
Dependent Claim
45 words
A compound of the formula: ##STR3## wherein R 1 is COOR 3 ; wherein R 3 is selected from the group consisting of hydrogen and a pharmaceutically acceptable salt cation; and R 2 is selected from the group consisting of hydrogen and COOR 3 .
Claim 3
Dependent Claim
10 words
The compound according to claim 1, 5,5',5",5'"-[1,3,5,7-naphthalenetetrayltetrakis(sulfonylimino)]-tetra-1,2,3-benzenetricarboxylic acid, dodecasodium salt.
Claim 4
Dependent Claim
10 words
The compound according to claim 1, 5,5',5",5'"-[1,3,6,7-naphthalenetetrayltetrakis(sulfonylimino)]-tetra-1,2,3-benzenetricarboxylic acid, dodecasodium salt.
Claim 5
Dependent Claim
10 words
The compound according to claim 1, 5,5',5",5'"-[1,3,6,8-naphthalenetetrayltetrakis(sulfonylimino)]-tetra-1,2,3-benzenetricarboxylic acid, dodecasodium salt.
Claim 6
Dependent Claim
10 words
The compound according to claim 1, 5,5',5",5'"-[1,3,5,7-naphthalenetetrayltetrakis(sulfonylimino)]-tetra-1,3-benzenedicarboxylic acid, octasodium salt.
Claim 7
Dependent Claim
10 words
The compound according to claim 1, 5,5',5",5'"-[1,3,6,7-naphthalenetetrayltetrakis(sulfonylimino)]-tetra-1,3-benzenedicarboxylic acid, octasodium salt.
Claim 8
Dependent Claim
10 words
The compound according to claim 1, 5,5',5",5'"-[1,3,6,8-naphthalenetetrayltetrakis(sulfonylimino)]-tetra-1,3-benzenedicarboxylic acid, octasodium salt.
References Cited (Backward Citations)
US4087613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |