Patent US2698338A successfully refreshed from Google Patents.
US2698338A
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Stabilization of unsaturated nitriles
Assignee: Monsanto Chemicals Ltd
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Filing: 1952-07-11
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Granted: 1954-12-28
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Expires: 1972-07-11
Abstract
No abstract record available.
Inventors
- 👤 Rudolph L Heider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:36
CPC Classifications
C; C07; C07C; C07C255/00; C08; C08F; C08F2/00; C08F2/38
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
16 words
A COMPOSITION COMPRISING AN UNSATURATED NITRILE CONTAINING A MINOR AMOUNT OF A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
16 words
A COMPOSITION COMPRISING AN UNSATURATED NITRILE CONTAINING A MINOR AMOUNT OF A COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
23 words
A PROCESS FOR INHIBITING THE POLYMERIZATION OF AN UNSATURATED NITRILE WHICH COMPRISES MIXING THEREWITH A MINOR AMOUNT OF A COMPOUND HAVING THE FORMULA
Claim 4
Dependent Claim
23 words
A PROCESS FOR INHIBITING THE POLYMERIZATION OF AN UNSATURATED NITRILE WHICH COMPRISES MIXING THEREWITH A MINOR AMOUNT OF A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
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US2471994A
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US2471928A
Cited
US2593787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |