US2876076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of boron trichloride
Assignee: Gulf Research and Development Co
•
Filing: 1954-12-23
•
Granted: 1959-03-03
•
Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 Charles W Montgomery
- 👤 William A Pardee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:35
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN THE MAUNFACTURE OF BORON TRICHLORIDE, THE PROCESS WHICH COMPRISES: CHARGING A BORON COMPOUND CONTAINING CHEMICALLY COMBINED WATER TO A HEATED HORIZON TAL ROTARY KILN; ROTATING THE KILN AND THEREBY TUMBLING THE CHARGE MATERIAL AND CAUSING IT TO TRAVEL LONGITUDINALLY THROUGH THE SAID KILN; APPLYING A SMALL PERCENTAGE OF LIQUEFIED PETROLEUM ASPHALT TO THE CHARGED BORON COMPOUND AT A POINT NEAR THE CHARGING END OF THE SAID KILN; MAINTAINING THE TEMPERATURE IN THE SAID KILN WITHIN A RANGE THAT WILL DEHYDRATE THE SAID BORON COMPOUND AND CARBONIZE THE APPLIED ASPHALT; AT LEAST PARTIALLY CARBONIZING THE APPLIED SMALL PERCENTAGE OF ASPHALT; SUCCESSIVELY APPLYING AND CARBONIZING ADDITIONAL SMALL PERCENTAGES ASPHALT WITH THE SAID BORON COMPOUND DURING ITS LONGI-
Claim 2
Dependent Claim
116 words
IN THE MAUNFACTURE OF BORON TRICHLORIDE, THE PROCESS WHICH COMPRISES: CHARGING A BORON COMPOUND CONTAINING CHEMICALLY COMBINED WATER TO A HEATED HORIZON TAL ROTARY KILN; ROTATING THE KILN AND THEREBY TUMBLING THE CHARGE MATERIAL AND CAUSING IT TO TRAVEL LONGITUDINALLY THROUGH THE SAID KILN; APPLYING A SMALL PERCENTAGE OF LIQUEFIED PETROLEUM ASPHALT TO THE CHARGED BORON COMPOUND AT A POINT NEAR THE CHARGING END OF THE SAID KILN; MAINTAINING THE TEMPERATURE IN THE SAID KILN WITHIN A RANGE THAT WILL DEHYDRATE THE SAID BORON COMPOUND AND CARBONIZE THE APPLIED ASPHALT; AT LEAST PARTIALLY CARBONIZING THE APPLIED SMALL PERCENTAGE OF ASPHALT; SUCCESSIVELY APPLYING AND CARBONIZING ADDITIONAL SMALL PERCENTAGES ASPHALT WITH THE SAID BORON COMPOUND DURING ITS LONGI-
References Cited (Backward Citations)
US1957129A
Cited
US2097482A
Cited
US2184885A
Cited
US2401544A
Cited
US2369212A
Cited
US2479904A
Cited
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 |