Patent US2877864A successfully refreshed from Google Patents.
US2877864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of boron trichloride
Assignee: US Borax Inc
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Filing: 1957-09-09
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Granted: 1959-03-17
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Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Cromwell
- 👤 Jr Glenn H Mcintyre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:14
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE METHOD OF SEPARATING BORON TRICHLORIDE FROM A GASEOUS MIXTURE CONTAINING BORON TRICHLORODE AND CARBON MONOXIDE WHICH COMPRISES CONTAINING SAID GASEOUS MIXTURE WITH A LIQUID ORGANIC SOLVENT TO SELECTIVELY ABSORB BORON TRICHLORIDE FROM SAID GASEOUS MIXTURE, SAID SOLVENT SELECTED FROM THE GROUP CONSISTING OF CHLORINATED BENZENES, FLUORINATED BENZENES, CHORINATED DIPHENYLS, FLUORINATED DIPHENYLS, CHLORINATED ALIPHATIC HYDROCARBONS HAVING FROM 2 TO ABOUT 12 CARBON ATOMS, AND FLUORINATED ALIPHATIC HYDROCARBONS HAVING FROM 2 TO ABOUT 12 CARBON ATOMS, ISOLATING THE RESULTING SOLUTION FROM THE UNDISSOLVED GASEOUS PORTION AND RECOVERING BORON TRICHLORIDE FROM THE ISOLATED SOLUTION.
Claim 2
Independent Claim
92 words
THE METHOD OF SEPARATING BORON TRICHLORIDE FROM A GASEOUS MIXTURE CONTAINING BORON TRICHLORODE AND CARBON MONOXIDE WHICH COMPRISES CONTAINING SAID GASEOUS MIXTURE WITH A LIQUID ORGANIC SOLVENT TO SELECTIVELY ABSORB BORON TRICHLORIDE FROM SAID GASEOUS MIXTURE, SAID SOLVENT SELECTED FROM THE GROUP CONSISTING OF CHLORINATED BENZENES, FLUORINATED BENZENES, CHORINATED DIPHENYLS, FLUORINATED DIPHENYLS, CHLORINATED ALIPHATIC HYDROCARBONS HAVING FROM 2 TO ABOUT 12 CARBON ATOMS, AND FLUORINATED ALIPHATIC HYDROCARBONS HAVING FROM 2 TO ABOUT 12 CARBON ATOMS, ISOLATING THE RESULTING SOLUTION FROM THE UNDISSOLVED GASEOUS PORTION AND RECOVERING BORON TRICHLORIDE FROM THE ISOLATED SOLUTION.
References Cited (Backward Citations)
US2311466A
Cited
US2540905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |