US3887620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-dialkylphosphinylalkyl phenoxyanilines
Assignee: CNA Holdings LLC
•
Filing: 1973-06-05
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Granted: 1975-06-03
•
Expires: 1993-06-05
Abstract
Abstract Novel phenoxyanilines which are N-substituted with dialkylphosphinylalkyl and methods of preparing the same are described. These compounds have central nervous system depressant, sedative and anticonvulsant properties.
Inventors
- 👤 Edward J Glamkowski
- 👤 Joseph T Strupczewski
- 👤 Erhard H Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:36
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/53; C07F9/5304
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
5 words
A compound of the formula
Claim 4
Dependent Claim
5 words
A compound of the formula
Claim 5
Dependent Claim
44 words
A compound as defined in claim 1 wherein R3 is hydrogen or benzyl, X1 is hydrogen, alkyl of 1 to 4 carbon atoms, cyclohexyl, chlorine, fluorine, bromine, trifluoromethyl, phenyl, methoxy or dimethylamino, X2 and X3 are hydrogen, and n is 1, 2 or 3.
Claim 6
Dependent Claim
8 words
The compound of claim 1 which is N-dimethylphosphinylmethyl-4-phenoxyaniline.
Claim 7
Dependent Claim
8 words
The compound of claim 1 which is N-dimethylphosphinylmethyl-4-(p-tolyloxy)aniline.
Claim 8
Dependent Claim
8 words
The compound of claim 1 which is N-dimethylphosphinylmethyl-4-(p-tert-butylphenoxy)aniline.
Claim 9
Dependent Claim
8 words
The compound of claim 1 which is N-dimethylphosphinylmethyl-4-(o-cyclohexylphenoxy)aniline.
Claim 10
Dependent Claim
8 words
The compound of claim 1 which is N-dimethylphosphinylmethyl-4-(p-fluorophenoxy)aniline.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |