Patent US2614906A successfully refreshed from Google Patents.
US2614906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In the method of making finely divided silica, the production of a combustible mixture comprising chloro silicon hydrides
Assignee: Ellis Foster Co
•
Filing: 1947-03-27
•
Granted: 1952-10-21
•
Expires: 1967-03-27
Abstract
No abstract record available.
Inventors
- 👤 Spialter Leonard
- 👤 Charles A Mackenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:14
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/18; C01B33/181; C01B33/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN A METHOD OF MAKING FINELY DIVIDED SILICA, THE STEP OF CONTINUOUSLY PASSING A CURRENT OF A GAS FROM THE GROUP CONSISTING OF A MIXTURE OF HYDROGEN AND CHLORINE AND A MIXTURE OF HYDROGEN CHLORIDE WITH HYDROGEN AND CHLORINE, THROUGH A REACTION ZONE OVER SILICON HEATED TO A TEMPERATURE OF FROM 200 TO 450* C., TO FORM A COMBUSTIBLE MIXTURE CONTAINING A PLURALITY OF CHLORO SILICON HYDRIDES.
Claim 2
Dependent Claim
67 words
IN A METHOD OF MAKING FINELY DIVIDED SILICA, THE STEP OF CONTINUOUSLY PASSING A CURRENT OF A GAS FROM THE GROUP CONSISTING OF A MIXTURE OF HYDROGEN AND CHLORINE AND A MIXTURE OF HYDROGEN CHLORIDE WITH HYDROGEN AND CHLORINE, THROUGH A REACTION ZONE OVER SILICON HEATED TO A TEMPERATURE OF FROM 200 TO 450* C., TO FORM A COMBUSTIBLE MIXTURE CONTAINING A PLURALITY OF CHLORO SILICON HYDRIDES.
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) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |