US3097227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-(1, 2-dicyanovinyl) diaryldicyano methanes, and preparation thereof
Assignee: EIDP Inc
•
Filing: 1960-04-28
•
Granted: 1963-07-09
•
Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 John K Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:36
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; C; C07; C07C; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
4-(1,2-DICYANOVINYL)ARYLDICYANOMETHANES HAVING THE FORMULA
Claim 2
Dependent Claim
4 words
4-(1,2-DICYANOVINYL)ARYLDICYANOMETHANES HAVING THE FORMULA
References Cited (Backward Citations)
US2762832A
Cited
US2889335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |