US2876255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of bromo acids and esters
Assignee: Ethyl Corp
•
Filing: 1956-04-26
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Granted: 1959-03-03
•
Expires: 1976-04-26
Abstract
No abstract record available.
Inventors
- 👤 James D Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:53
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/347; C07C51/363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR THE PRODUCTION OF ALPHA-BROMOORGANOO COMPOUND COMPRISING REACTING AN ALPHA-HYDROXY CARBOXYLIC COMPOUND OF AN ALPHA-HYDROXY CARBOXYLIC ACID HAVING FROM 2 TO 14 CARBON ATOMS WITH HYDROGEN BROMIDE UNDER REACTION CONDITION WHEREBY WATER IS REMOVED FROM THE REACTION ZONE DURING SAID REACTION WITHOUT SUBSTANTIAL CARRYOVER OF SAID HYDROGEN BROMIDE.
Claim 2
Dependent Claim
50 words
A PROCESS FOR THE PRODUCTION OF ALPHA-BROMOORGANOO COMPOUND COMPRISING REACTING AN ALPHA-HYDROXY CARBOXYLIC COMPOUND OF AN ALPHA-HYDROXY CARBOXYLIC ACID HAVING FROM 2 TO 14 CARBON ATOMS WITH HYDROGEN BROMIDE UNDER REACTION CONDITION WHEREBY WATER IS REMOVED FROM THE REACTION ZONE DURING SAID REACTION WITHOUT SUBSTANTIAL CARRYOVER OF SAID HYDROGEN BROMIDE.
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) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |