US2762832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-tricyanovinylamines and a process for preparing them
Assignee: EIDP Inc
•
Filing: 1953-09-28
•
Granted: 1956-09-11
•
Expires: 1973-09-28
Abstract
No abstract record available.
Inventors
- 👤 Heckert Richard Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:45
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A N-TRICYANOVINYLAMINE HAVING THE FORMULA,
Claim 2
Dependent Claim
5 words
A N-TRICYANOVINYLAMINE HAVING THE FORMULA,
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) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |