Patent US3837305A successfully refreshed from Google Patents.
Patent US3012861A successfully refreshed from Google Patents.
US3012861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of silicon
Assignee: EIDP Inc
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Filing: 1960-01-15
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Granted: 1961-12-12
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Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
- 👤 Harry W Ling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:06
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/02; Y; Y10; Y10S; Y10S148/00; Y10S148/079; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR PRODUCING SILICON COMPRISING FLUIDIZING A BED OF SILICON PARTICLES WITH A VAPORIZED SILICON COMPOUND SELECTED FROM THE GROUP CONSISTING OF SILICON IODIDES, SILANES, CHLOROSILANES, BROMOSILANES, AND IODOSILANES, SAID BED OF SILICON PARTICLES BEING MAINTAINED AT LEAST AT THE DECOMPOSING TEMPERATURE OF SAID SILICON COMPOUND, DECOMPOSING SAID SILICON COMPOUND WITHIN SAID BED AND DEPOSITING THE RESULTING SILICON PRODUCT ON THE FLUIDIZED PARTICLES, REMOVING UNREACTED FLUIDIZING VAPOR AND THE REACTION BY-PRODUCTS IN THE VAPOR STATE, AND RECOVERING SAID PARTICLES WITH THE DEPOSITED SILICON THEREON.
Claim 2
Dependent Claim
85 words
A PROCESS FOR PRODUCING SILICON COMPRISING FLUIDIZING A BED OF SILICON PARTICLES WITH A VAPORIZED SILICON COMPOUND SELECTED FROM THE GROUP CONSISTING OF SILICON IODIDES, SILANES, CHLOROSILANES, BROMOSILANES, AND IODOSILANES, SAID BED OF SILICON PARTICLES BEING MAINTAINED AT LEAST AT THE DECOMPOSING TEMPERATURE OF SAID SILICON COMPOUND, DECOMPOSING SAID SILICON COMPOUND WITHIN SAID BED AND DEPOSITING THE RESULTING SILICON PRODUCT ON THE FLUIDIZED PARTICLES, REMOVING UNREACTED FLUIDIZING VAPOR AND THE REACTION BY-PRODUCTS IN THE VAPOR STATE, AND RECOVERING SAID PARTICLES WITH THE DEPOSITED SILICON THEREON.
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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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |