US2941005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 2-diamino-1-alkene compounds
Assignee: Phillips Petroleum Co
•
Filing: 1955-07-29
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Granted: 1960-06-14
•
Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 John E Mahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:17
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/04; C07C209/06; C07C209/08; C06; C06B; C06B43/00; C06D; C06D5/00; C06D5/08; C07C209/60; Y; Y10; Y10S; Y10S149/00; Y10S149/12; Y10S149/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A 1,2-DIAMINO-1-ALKENE SELECTED FROM THE GROUP CONSISTING OF N,N,N''N''-TETRAMETHYL - 1,2 - DIAMINOETHYLENE, N,N,N'',N''-TETRAETHYL-1,2-DIAMINOETHYLENE, AND N,N''DIMETHYL-N,N''-DIETHYL-1,2-DIAMINOETHYLENE.
Claim 2
Dependent Claim
16 words
A 1,2-DIAMINO-1-ALKENE SELECTED FROM THE GROUP CONSISTING OF N,N,N''N''-TETRAMETHYL - 1,2 - DIAMINOETHYLENE, N,N,N'',N''-TETRAETHYL-1,2-DIAMINOETHYLENE, AND N,N''DIMETHYL-N,N''-DIETHYL-1,2-DIAMINOETHYLENE.
References Cited (Backward Citations)
US2693077A
Cited
US2565529A
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US2540938A
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US2652430A
Cited
US2617827A
Cited
US2753683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |