US2868833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aliphatic diamines and salts thereof
Assignee: Wyeth LLC
•
Filing: 1956-01-18
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Granted: 1959-01-13
•
Expires: 1976-01-18
Abstract
No abstract record available.
Inventors
- 👤 Szabo Joseph Lester
- 👤 William F Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:10
CPC Classifications
C; C07; C07D; C07D499/00; C07D219/00; C07D219/14; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/52; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/50; C07D317/58; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AS NEW COMPOUNDS, THE WATER-SOLUBLE LOWER ALIPHATIC ACID-ADDITION SALTS OF N,N''-BIS-(3,5,5-TRIMETHYLHEXYL)ETHYLENEDIAMINE.
Claim 2
Dependent Claim
11 words
AS NEW COMPOUNDS, THE WATER-SOLUBLE LOWER ALIPHATIC ACID-ADDITION SALTS OF N,N''-BIS-(3,5,5-TRIMETHYLHEXYL)ETHYLENEDIAMINE.
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) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |