Patent US3108934A successfully refreshed from Google Patents.
US3108934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of antimony of high purity
Assignee: LES PRODUITS SEMI-CONDUCTEURS
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Filing: 1961-04-10
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Granted: 1963-10-29
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Expires: 1981-04-10
Abstract
No abstract record available.
Inventors
- 👤 Beau Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:17
CPC Classifications
C; C22; C22B; C22B30/00; C22B30/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF PREPARING ANTIMONY OF HIGH PURITY WHICH COMPRISES DISSOLVING ANTIMONY OXIDE, SB2O3, IN AN ELECTROLYTE AND ELECTROLYTICALLY SEPARATING ARSENIC AND ANTIMONY FROM IMPURITIES, TRANSFORMING THE ANTIMONY TO OXIDE AND ADDING THE ANTIMONY OXIDE CONTAINING ARSENIC TO HYDROCHLORIC ACID AND SEPARATING THE ARSENIC FROM THE ANTIMONY BY DISTILLATION, DISSOLVING THE ANTIMONY TRICHLORIDE IN AN ELECTROLYTE, AND ELECTROLYTICALLY SEPARATING IT FROM RESIDUAL IMPURITIES.
Claim 2
Independent Claim
63 words
A METHOD OF PREPARING ANTIMONY OF HIGH PURITY WHICH COMPRISES DISSOLVING ANTIMONY OXIDE, SB2O3, IN AN ELECTROLYTE AND ELECTROLYTICALLY SEPARATING ARSENIC AND ANTIMONY FROM IMPURITIES, TRANSFORMING THE ANTIMONY TO OXIDE AND ADDING THE ANTIMONY OXIDE CONTAINING ARSENIC TO HYDROCHLORIC ACID AND SEPARATING THE ARSENIC FROM THE ANTIMONY BY DISTILLATION, DISSOLVING THE ANTIMONY TRICHLORIDE IN AN ELECTROLYTE, AND ELECTROLYTICALLY SEPARATING IT FROM RESIDUAL IMPURITIES.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |