US2889328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N (2 substituted thio phenyl) n phenyl, alkylene diamines
Assignee: Merck Sharp & Dohme LLC
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Filing: 1956-01-19
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Granted: 1959-06-02
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Expires: 1976-01-19
Abstract
No abstract record available.
Inventors
- 👤 Sherlock Margaret
- 👤 Sperber Nathan
- 👤 Papa Domenick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:08
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
21 words
COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF THE FREE BASES OF THE FOLLOWING FORMULA AND THE NON-TOXIC ACID ADDITION SALTS THEREOF:
Claim 2
Dependent Claim
21 words
COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF THE FREE BASES OF THE FOLLOWING FORMULA AND THE NON-TOXIC ACID ADDITION SALTS THEREOF:
Claim 3
Dependent Claim
2 words
N-(B-DIETHYLAMINOETHYL)-2- METHYLTHIODIPHENYLAMINE.
Claim 4
Dependent Claim
2 words
N-(B-DIETHYLAMINOETHYL)-2- METHYLTHIODIPHENYLAMINE.
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) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |