US2678945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of unsaturated nitriles
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-03-11
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Granted: 1954-05-18
•
Expires: 1973-03-11
Abstract
No abstract record available.
Inventors
- 👤 Keith M Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:05
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A COMPOSITION COMPRISING AN UNSATURATED NITRILE CONTAINING A MINOR AMOUNT OF A-NITROSOB-NAPHTHOL.
Claim 2
Dependent Claim
12 words
A COMPOSITION COMPRISING AN UNSATURATED NITRILE CONTAINING A MINOR AMOUNT OF A-NITROSOB-NAPHTHOL.
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) | 1957-05-17 | 1957-11-16 | 1958-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-17 | 1961-11-16 | 1962-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-17 | 1965-11-16 | 1966-05-18 | $7700.00 | Window Closed / Lapsed |