Patent US2965456A successfully refreshed from Google Patents.
US2965456A
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Process for crystalline growth employing collimated electrical energy
Assignee: Union Carbide Corp
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Filing: 1956-12-31
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Granted: 1960-12-20
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Grady W Clark
- 👤 Robert A Lefever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:21
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/02; C30; C30B; C30B11/00; C30B11/005; C30B11/04; C30B11/08; C30B11/10; C30B11/12; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS FOR GROWING A CRYSTALLINE BOULE FROM FEED CONSTITUENTS COMPRISING TE STEPS OF CONCURRENTLY ESTABLISHING AN ELECTRIC ARC BETWEEN A FIRST ELECTRODE AND A SECOND ELECTRODE POSITION THEREFROM HAVING AN ORIFICE THEREIN, PASSING A GAS STREAM IN INTIMATE CONTACT WITH SAID FIRST ELECTRODE TO CONTAIN THE ARC, CONSTRICTING THE ARCCONTAINING GAS STREAM THROUGHH SAID ORIFICE TO COLLIMATE THE ARC ENERGY AND THE GAS STREAM AS WELL AS TO PRODUCE A HIGH-PRESSURE ARC AND A HIGH THERMAL CONTENT EFFLUENT,
Claim 2
Dependent Claim
79 words
A PROCESS FOR GROWING A CRYSTALLINE BOULE FROM FEED CONSTITUENTS COMPRISING TE STEPS OF CONCURRENTLY ESTABLISHING AN ELECTRIC ARC BETWEEN A FIRST ELECTRODE AND A SECOND ELECTRODE POSITION THEREFROM HAVING AN ORIFICE THEREIN, PASSING A GAS STREAM IN INTIMATE CONTACT WITH SAID FIRST ELECTRODE TO CONTAIN THE ARC, CONSTRICTING THE ARCCONTAINING GAS STREAM THROUGHH SAID ORIFICE TO COLLIMATE THE ARC ENERGY AND THE GAS STREAM AS WELL AS TO PRODUCE A HIGH-PRESSURE ARC AND A HIGH THERMAL CONTENT EFFLUENT,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |