US3086847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boron production
Assignee: Millennium Petrochemicals Inc
•
Filing: 1958-12-17
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Granted: 1963-04-23
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Expires: 1978-12-17
Abstract
No abstract record available.
Inventors
- 👤 Schott Stuart
- 👤 Virgil L Hansley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:31
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/02; C01B35/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
PROCESS FOR THE MANUFACTURE OF ELEMENTAL BORON WHICH COMPRISES REACTING BORON TRICHLORIDE WITH A STOICHIOMETRICALLY EQUIVALENT AMOUNT OF SODIUM DISPERSED ON A FINELY DIVIDED SOLIDS BED OF REACTION PRODUCTS COMPRISING ESSENTIALLY ELEMENTAL BORON AND SODIUM CHLORIDE, A STOICHIOMETRIC CONDITION BEING MAINTAINED THROUGHOUT THE REACTION AND THE TEMPERATURE OF SAID REACTION BEING MAINTAINED AT LEAST 50 CENTIGRADE DEGREES BELOW THE MELTING POINT OF THE BY-PRODUCT SODIUM CHLORIDE, RECOVERING ELEMENTAL BORON THEREFROM.
Claim 2
Dependent Claim
70 words
PROCESS FOR THE MANUFACTURE OF ELEMENTAL BORON WHICH COMPRISES REACTING BORON TRICHLORIDE WITH A STOICHIOMETRICALLY EQUIVALENT AMOUNT OF SODIUM DISPERSED ON A FINELY DIVIDED SOLIDS BED OF REACTION PRODUCTS COMPRISING ESSENTIALLY ELEMENTAL BORON AND SODIUM CHLORIDE, A STOICHIOMETRIC CONDITION BEING MAINTAINED THROUGHOUT THE REACTION AND THE TEMPERATURE OF SAID REACTION BEING MAINTAINED AT LEAST 50 CENTIGRADE DEGREES BELOW THE MELTING POINT OF THE BY-PRODUCT SODIUM CHLORIDE, RECOVERING ELEMENTAL BORON THEREFROM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |