US4051176A
Expired / Lapsed
US
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Ureidophenylenebis(carbonylimino)dinaphthalenetrisulfonic acid compounds
Assignee: Wyeth Holdings LLC
•
Filing: 1976-05-10
•
Granted: 1977-09-27
•
Expires: 1996-05-10
Abstract
Abstract m-Phenylenebis(carbonylimino)dinaphthalenetrisulfonic acids and salts useful as complement inhibitors.
Inventors
- 👤 Seymour Bernstein
- 👤 Robert Herman Lenhard
- 👤 Ransom Brown Conrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:32
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/78; C07C309/86; C07C309/88; C07C309/01; C07C309/28; C07C309/45; C07C309/51
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
41 words
A compound selected from those of the formula ##STR5## wherein R is selected from the group consisting of ##STR6## and A is hydrogen, alkali metal or alkaline earth metal, with the proviso that each A is identical in the same compound.
Claim 2
Dependent Claim
41 words
A compound selected from those of the formula ##STR5## wherein R is selected from the group consisting of ##STR6## and A is hydrogen, alkali metal or alkaline earth metal, with the proviso that each A is identical in the same compound.
Claim 3
Dependent Claim
19 words
A compound selected from those of the formula: ##STR7## wherein R is selected from the group consisting of ##STR8##
Claim 4
Dependent Claim
19 words
A compound selected from those of the formula: ##STR7## wherein R is selected from the group consisting of ##STR8##
Claim 5
Dependent Claim
19 words
A compound selected from those of the formula: ##STR9## wherein R is selected from the group consisting of ##STR10##
Claim 6
Dependent Claim
19 words
A compound selected from those of the formula: ##STR9## wherein R is selected from the group consisting of ##STR10##
Claim 7
Dependent Claim
10 words
A compound according to claim 2, 8,8'-{{5-[3-(3-nitro-p-tolyl)ureido]-1,3-phenylene}bis(carbonylimino)}di-1,3,6-naphthalenetrisulfonic acid, hexasodium salt.
Claim 8
Dependent Claim
10 words
A compound according to claim 2, 8,8'-{{5-{3[m-(fluorosulfonyl)phenyl]ureido}-1,3-phenylene}bis(carbonylimino)}di-1,3,6-naphthalenetrisulfonic acid, hexasodium salt.
Claim 9
Dependent Claim
10 words
A compound according to claim 2, 8,8'-{{5-[3(α,α,α-trifluoro-m-tolyl)ureido]-1,3-phenylene}bis(carbonylimido)}di-1,3,6-naphthalenetrisulfonic acid, hexasodium salt.
Claim 10
Dependent Claim
10 words
A compound according to claim 3, 8,8'-{{5-[3(3-nitro-p-tolyl)ureido]-1,3-phenylene}bis(carbonylimino)}di-1,3,5-naphthalenetrisulfonic acid, hexasodium salt.
Claim 11
Dependent Claim
10 words
A compound according to claim 3, 8,8'-{{5-{3[m-(fluorosulfonyl)phenyl]ureido}-1,3-phenylene}bis(carbonylimino)}di-1,3,5-naphthalenetrisulfonic acid, hexasodium salt.
Claim 12
Dependent Claim
10 words
A compound according to claim 3, 8,8'-{{5-[3(α,α,α-trifluoro-m-tolyl)ureido]-1,3-phenylene}bis(carbonylimino)}di-1,3,5-naphthalenetrisulfonic acid, hexasodium salt.
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) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |