US2925434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dinitrocyanoacetates
Assignee: Individual
•
Filing: 1956-03-06
•
Granted: 1960-02-16
•
Expires: 1976-03-06
Abstract
No abstract record available.
Inventors
- 👤 Charles O Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:14
CPC Classifications
C; C07; C07C; C07C255/00; C06; C06B; C06B25/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
NEW CHEMICAL COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
6 words
NEW CHEMICAL COMPOUNDS OF THE FORMULA
Claim 3
Dependent Claim
22 words
A PROCESS FOR PREPARING ESTERS OF DINITROCYANOACETIC ACID WHICH COMPRISES REACTING AND ESTER OF OXIMINOCYANOACETIC ACID WITH NITRIC ACID BELOW ABOUT 30*C.
Claim 4
Dependent Claim
22 words
A PROCESS FOR PREPARING ESTERS OF DINITROCYANOACETIC ACID WHICH COMPRISES REACTING AND ESTER OF OXIMINOCYANOACETIC ACID WITH NITRIC ACID BELOW ABOUT 30*C.
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) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |