Patent US2770657A successfully refreshed from Google Patents.
US2770657A
Expired / Lapsed
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Nitrogen dioxide compounds of 1, 3-dichloro-2-butene, and compositions containing the same
Assignee: EIDP Inc
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Filing: 1953-02-11
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Granted: 1956-11-13
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Expires: 1973-02-11
Abstract
No abstract record available.
Inventors
- 👤 Hively Jack Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:14
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
33 words
A PROCESS FOR PREPARING A STABLE NITROGEN-CONTAINING DERIVATIVE OF 1,3-DICHLORO-2-BUTENE WHICH COMPRISES REACTING 0.003 TO 0.74 PART OF NITROGEN DIOXIDE WITH 1 PART OF 1,3-DICHLORO-2-BUTENE AT TEMPERATURES OF FROM -30* TO +125* C.
Claim 2
Dependent Claim
33 words
A PROCESS FOR PREPARING A STABLE NITROGEN-CONTAINING DERIVATIVE OF 1,3-DICHLORO-2-BUTENE WHICH COMPRISES REACTING 0.003 TO 0.74 PART OF NITROGEN DIOXIDE WITH 1 PART OF 1,3-DICHLORO-2-BUTENE AT TEMPERATURES OF FROM -30* TO +125* C.
Claim 3
Dependent Claim
49 words
A CHLORO-1,3-BUTADIENE COMPOUND OF THE GROUP CONSISTING OF 2-CHLORO-1,3-BUTADIENE AND 2,3-DICHLORO-1,3BUTADIENE STABILIZED AGAINST THE GROWTH OF GRANULAR POLYMERS BY CONTAINING A 1,3-DICHLORO-2-BUTENE-NITROGEN DIOXIDE REACTION PRODUCT OBTAINED BY THE PROCESS OF CLAIM 1 IN AN AMOUNT SUFFICIENT TO GIVE IN THE CHLORO-1,3-BUTADIENE SOLUTION FROM 0.001% TO 1.0% OF COMBINED NO2.
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) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |