US4051175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphonophenylaminonaphthalene compounds
Assignee: Imperial Chemical Industries Ltd
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Filing: 1976-04-30
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Granted: 1977-09-27
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Expires: 1996-04-30
Abstract
Abstract Naphthalene compounds of the formula: <IMAGE> WHEREIN M IS 0, 1 OR 2 N IS 0 OR CAN BE 1 IF M IS 1 OR 2, IN WHICH CASE X1 is NH2 or OH in m position to a S
Inventors
- 👤 Herbert Francis Andrew
- 👤 Cecil Vivian Stead
- 👤 Ronald Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:29
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3882; C07F9/3808; C07F9/3834
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
71 words
A naphthalene compound of the formula ##STR37## wherein m is 0, 1 or 2 n is 0 or can be 1 if m is 1 or 2 in which case X 1 is OH or NH 2 in m position to a SO 3 H group, p is 1 or 2, q is 0 or 1 and the benzene ring can be further substituted by OCH 3 or CH 3 .
Claim 2
Dependent Claim
71 words
A naphthalene compound of the formula ##STR37## wherein m is 0, 1 or 2 n is 0 or can be 1 if m is 1 or 2 in which case X 1 is OH or NH 2 in m position to a SO 3 H group, p is 1 or 2, q is 0 or 1 and the benzene ring can be further substituted by OCH 3 or CH 3 .
Claim 3
Dependent Claim
58 words
A naphthalene compound of the formula ##STR38## wherein m is 0, 1 or 2, n is 0 or can be 1 if m is 1 or 2, in which case X 1 is NH 2 or OH in m position to a SO 3 H group, X is phenylene, tolylene or anisylene, and p is 1 or 2.
Claim 4
Dependent Claim
58 words
A naphthalene compound of the formula ##STR38## wherein m is 0, 1 or 2, n is 0 or can be 1 if m is 1 or 2, in which case X 1 is NH 2 or OH in m position to a SO 3 H group, X is phenylene, tolylene or anisylene, and p is 1 or 2.
Claim 5
Dependent Claim
10 words
The naphthalene compound of claim 2 having the formula ##STR39##
Claim 6
Dependent Claim
10 words
The naphthalene compound of claim 2 having the formula ##STR40##
Claim 7
Dependent Claim
10 words
The naphthalene compound of claim 2 having the formula ##STR41##
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 |