US2914560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitrogenous compounds
Assignee: Dow Chemical Co
•
Filing: 1956-10-18
•
Granted: 1959-11-24
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Expires: 1976-10-18
Abstract
No abstract record available.
Inventors
- 👤 Dale N Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:26
CPC Classifications
A; A01; A01N; A01N35/00; A01N35/08; A01N35/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
AN N-ARYLIDENE-NORMAL-ALKYLAMINE HAVING THE STRUCTURE
Claim 2
Dependent Claim
5 words
AN N-ARYLIDENE-NORMAL-ALKYLAMINE HAVING THE STRUCTURE
References Cited (Backward Citations)
US2765340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |