Patent US3130222A successfully refreshed from Google Patents.
US3130222A
Expired / Lapsed
US
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Process for the preparation of aliphatic bromides
Assignee: Dow Chemical Co
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Filing: 1962-02-14
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Granted: 1964-04-21
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Expires: 1982-02-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Asadorian
- 👤 George A Burk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:59
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/347; C07C51/363; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR THE SUBSTITUTION BROMINATION OF AN ALIPHATIC CHLORIDE WHICH COMPRISES REACTING AN ALIPHATIC CHLORIDE SELECTED FROM THE GROUP CONSISTING OF CHLOROALKANES HAVING FROM 2 TO ABOUT 18 CARBON ATOMS, CHLOROALKANOIC ACIDS HAVING FROM 2 TO ABOUT 18 CARBON ATOMS, THEIR PHENYL, AND LOWER ALKYLPHENYL DERIVATIVES, WITH HYDROGEN BROMIDE IN THE PRESENCE OF AQUEOUS HYDROBROMIC ACID HAVING A CONCENTRATION OF ACID OF AT LEAST ABOUT 40% AT A TEMPERATURE OF FROM ABOUT ROOM TEMPERATURE TO ABOUT 140*C.
Claim 2
Dependent Claim
78 words
A PROCESS FOR THE SUBSTITUTION BROMINATION OF AN ALIPHATIC CHLORIDE WHICH COMPRISES REACTING AN ALIPHATIC CHLORIDE SELECTED FROM THE GROUP CONSISTING OF CHLOROALKANES HAVING FROM 2 TO ABOUT 18 CARBON ATOMS, CHLOROALKANOIC ACIDS HAVING FROM 2 TO ABOUT 18 CARBON ATOMS, THEIR PHENYL, AND LOWER ALKYLPHENYL DERIVATIVES, WITH HYDROGEN BROMIDE IN THE PRESENCE OF AQUEOUS HYDROBROMIC ACID HAVING A CONCENTRATION OF ACID OF AT LEAST ABOUT 40% AT A TEMPERATURE OF FROM ABOUT ROOM TEMPERATURE TO ABOUT 140*C.
References Cited (Backward Citations)
US2553518A
Cited
US2729607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |