US2854318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for producing semiconductor materials
Assignee: Siemens and Halske AG
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Filing: 1957-06-26
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Granted: 1958-09-30
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Expires: 1977-06-26
Abstract
No abstract record available.
Inventors
- 👤 Rummel Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:55
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/02; C30B29/06; C01; C01B; C01B33/00; C01B33/02; C01B33/021; C01B33/027; C01B33/035; C01B33/08; C22; C22B; C22B41/00; C23; C23C; C23C16/00; C23C16/06; C23C16/22; C23C16/44; C23C16/46; C30B13/00; C30B25/00; C30B25/02; C30B30/00; C30B30/02; C30B9/00; C30B9/14; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1906; G05D23/27; H; H10; H10D; H10D99/00; H10P; H10P10/00; H10P10/12; H10P14/00; H10P14/20; H10P14/24; H10P14/29; H10P14/2901; H10P14/2902; H10P14/2905; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; H10P95/00; Y; Y10; Y10S; Y10S117/00; Y10S117/917; Y10T; Y10T117/00; Y10T117/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
AN APPARATUS FOR PRODUCING SEMICONDUCTOR MATERIAL OF HIGHEST PURITY, COMPRISING A VESSEL FORMING AN ELONGATED TUBULAR CHAMBER INTO WHICH IS CONDUCTED SEMICONDUCTOR MATERIAL IN GASEOUS PHASE, AN ELONGATED CARRIER BODY DISPOSED HORIZONTALLY AND AXIALLY WITHIN THE TUBULAR ELONGATED CHAMBER AND MADE OF SEMICONDUCTOR MATERIAL CORRESPONDING TO THAT CARRIED BY SAID GASEOUS PHASE,
Claim 2
Independent Claim
52 words
AN APPARATUS FOR PRODUCING SEMICONDUCTOR MATERIAL OF HIGHEST PURITY, COMPRISING A VESSEL FORMING AN ELONGATED TUBULAR CHAMBER INTO WHICH IS CONDUCTED SEMICONDUCTOR MATERIAL IN GASEOUS PHASE, AN ELONGATED CARRIER BODY DISPOSED HORIZONTALLY AND AXIALLY WITHIN THE TUBULAR ELONGATED CHAMBER AND MADE OF SEMICONDUCTOR MATERIAL CORRESPONDING TO THAT CARRIED BY SAID GASEOUS PHASE,
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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |