US2627451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disproportionation of silane derivatives
Assignee: Union Carbide Corp
•
Filing: 1948-04-22
•
Granted: 1953-02-03
•
Expires: 1968-04-22
Abstract
No abstract record available.
Inventors
- 👤 Charles E Erickson
- 👤 George H Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:27
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/04; C01B33/08; C01B33/107; C07; C07F; C07F7/00; C07F7/02; C07F7/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
PROCESS OF DISPROPORTIONATING TRI-CHLORO SILANE TO FORM DI-CHLORO SILANE, WHICH COMPRISES HEATING THE TRI-CHLORO SILANE TO A TEMPERATURE OF AT LEAST ABOUT 300* C. IN THE PRESENCE OF AN ACID CATALYST OF THE METAL HALIDE TYPE.
Claim 2
Dependent Claim
36 words
PROCESS OF DISPROPORTIONATING TRI-CHLORO SILANE TO FORM DI-CHLORO SILANE, WHICH COMPRISES HEATING THE TRI-CHLORO SILANE TO A TEMPERATURE OF AT LEAST ABOUT 300* C. IN THE PRESENCE OF AN ACID CATALYST OF THE METAL HALIDE TYPE.
References Cited (Backward Citations)
US2458703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-03 | 1956-08-04 | 1957-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-03 | 1960-08-04 | 1961-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-03 | 1964-08-04 | 1965-02-03 | $7700.00 | Window Closed / Lapsed |