Patent US2900414A successfully refreshed from Google Patents.
US2900414A
Expired / Lapsed
US
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Synthesis of arylboron halides
Assignee: EIDP Inc
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Filing: 1957-06-03
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Granted: 1959-08-18
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Expires: 1977-06-03
Abstract
No abstract record available.
Inventors
- 👤 Earl L Muetterties
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:56
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A PROCESS FOR PREPARING ARYLBORON HALIDES WHICH COMPRISES CONTACTING A BORON TRIHALIDE, WHOSE HALOGENS HAVE AN ATOMIC NUMBER OF AT LEAST 17, WITH AN AROMATIC HYDROCARBON HAVING HYDROGEN ON AT LEAST ONE OF THE ANNULAR CARBONS AT A TEMPERATURE OF FROM ABOUT 0* TO ABOUT 200*C. IN THE PRESENCE OF A MEMBER OF THE GROUP CONSISTING OF ALUMINUM AND ALUMINUM CHLORIDE.
Claim 2
Dependent Claim
61 words
A PROCESS FOR PREPARING ARYLBORON HALIDES WHICH COMPRISES CONTACTING A BORON TRIHALIDE, WHOSE HALOGENS HAVE AN ATOMIC NUMBER OF AT LEAST 17, WITH AN AROMATIC HYDROCARBON HAVING HYDROGEN ON AT LEAST ONE OF THE ANNULAR CARBONS AT A TEMPERATURE OF FROM ABOUT 0* TO ABOUT 200*C. IN THE PRESENCE OF A MEMBER OF THE GROUP CONSISTING OF ALUMINUM AND ALUMINUM CHLORIDE.
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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |