US3852339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminoalkoxyphenylurea derivatives
Assignee: ER Squibb and Sons LLC
•
Filing: 1972-01-25
•
Granted: 1974-12-03
•
Expires: 1992-01-25
Abstract
Abstract The compounds of this invention are useful as antiarrhythmic agents. Disclosed herein are novel aminoalkoxyphenylurea derivatives having the general formula
Inventors
- 👤 J Krapcho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:30
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/20; C07D295/215; C07C; C07C275/00; C07C275/28; C07C275/32; C07C275/34; C07C323/00; C07C323/23; C07C323/39; C07C323/43; C07C323/44; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
5 words
A compound having the formula
Claim 4
Dependent Claim
5 words
A compound having the formula
Claim 5
Dependent Claim
5 words
A compound having the formula
Claim 6
Dependent Claim
5 words
A compound having the formula
Claim 7
Dependent Claim
14 words
A compound as in claim 2 wherein the lower alkylene group has three carbons.
Claim 8
Dependent Claim
30 words
A compound as in claim 2 wherein the lower alkylene group has three carbons and each lower alkyl group is methyl or a salt, thereof with a pharmaceutically acceptable acid.
Claim 9
Dependent Claim
10 words
The cyclohexanesulfamic acid salt of the compound of claim 5.
Claim 10
Dependent Claim
10 words
The p-toluenesulfonic acid salt of the compound of claim 5.
Claim 11
Dependent Claim
14 words
A compound as in claim 3 wherein the lower alkylene group has three carbons.
Claim 12
Dependent Claim
21 words
A compound as in claim 3 wherein the lower alkylene group has three carbons and each lower alkyl group is methyl.
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Cited
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Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |