Patent US2586391A successfully refreshed from Google Patents.
US3192139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing hyperpure gallium
Assignee: Siemens Schuckertwerke AG
•
Filing: 1961-04-19
•
Granted: 1965-06-29
•
Expires: 1981-04-19
Abstract
No abstract record available.
Inventors
- 👤 Merkel Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:36
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/005; C25C3/00; C25C3/34; C30; C30B; C30B13/00; C30B29/00; C30B29/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE METHOD OF PRODUCING HYPERPURE GALLIUM BY ELECTROYSIS OF A FUSED BATH OF ELECTROYTE WHICH COMPRISES USING GALLIUM (II) HALIDES OF THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE AS SAID ELECTROLYTE, SAID GALLIUM (II)-HALIDE BEING PRE-PURIFIED BY ZONE-PULLING AND USING LIQUID GALLIUM METAL AS ELECTRODES.
Claim 2
Independent Claim
46 words
THE METHOD OF PRODUCING HYPERPURE GALLIUM BY ELECTROYSIS OF A FUSED BATH OF ELECTROYTE WHICH COMPRISES USING GALLIUM (II) HALIDES OF THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE AS SAID ELECTROLYTE, SAID GALLIUM (II)-HALIDE BEING PRE-PURIFIED BY ZONE-PULLING AND USING LIQUID GALLIUM METAL AS ELECTRODES.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |