US2836613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3, 3'-(alkylenedioxy) dipropionitriles
Assignee: Monsanto Chemicals Ltd
•
Filing: 1956-03-14
•
Granted: 1958-05-27
•
Expires: 1976-03-14
Abstract
No abstract record available.
Inventors
- 👤 Heininger Samuel Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:59
CPC Classifications
C; C07; C07C; C07C255/00; C07C255/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
3,3''-(ALKENYLENEDIOXY)DIPROPIONITRILES OF THE FORMULA
Claim 2
Dependent Claim
4 words
3,3''-(ALKENYLENEDIOXY)DIPROPIONITRILES OF 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) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |