US2809983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxyanilinopropionitriles
Assignee: Monsanto Chemicals Ltd
•
Filing: 1956-03-12
•
Granted: 1957-10-15
•
Expires: 1976-03-12
Abstract
No abstract record available.
Inventors
- 👤 Heininger Samuel Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:54
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
3-(HYDROXYANILINO) PROPIONITRILES.
Claim 2
Dependent Claim
2 words
3-(HYDROXYANILINO) PROPIONITRILES.
References Cited (Backward Citations)
US1992615A
Cited
GB466316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |