US3128154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing crystalline silicon over a substrate and removal therefrom
Assignee: Eagle Picher Co
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Filing: 1958-12-19
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Granted: 1964-04-07
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Expires: 1978-12-19
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Bean
- 👤 William E Medcalf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:49
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/02; C01B33/021; C01B33/027; C01B33/035
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
51 words
A PROCESS FOR PREPARING CRYSTALLINE SILICON COMPRISING THE STEPS OF DEPOSITING ON A FILAMENT A SUBSTRATE OF POWDERY SILICON IN THE FORM OF FINE DISCRETE PARTICLES PRODUCED BY THE THERMAL DECOMPOSITION OF A SILANE, DEPOSITING CRYSTALLINE SILICON OVER SAID SUBSTRATE, AND THEN PULLING THE CRYSTALLINE SILICON DEPOSIT LONGITUDINALLY FROM THE FILAMENT.
References Cited (Backward Citations)
GB745698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |