US2532387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of methylchlorosilanes
Assignee: Linde Air Products Co
•
Filing: 1949-09-13
•
Granted: 1950-12-05
•
Expires: 1969-09-13
Abstract
No abstract record available.
Inventors
- 👤 Donaid L Bailey
- 👤 George H Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:56
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/121; C07F7/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
PROCESS FOR MAKING METHYLCHLOROSILANES WHICH COMPRISES REACTING HYDROGEN WITH A COMPOUND OF THE TYPE R-C2H4-SIC13 WHERE R IS HYDROGEN OR TRICHLOROSILYL, SAID REACTION OCCURRING IN THE PRESENCE OF A BORON HALIDE AT A TEMPERATURE ABOVE 400*C. AND AT A PRESSURE ABOVE 2500 P. S. I.
Claim 2
Dependent Claim
45 words
PROCESS FOR MAKING METHYLCHLOROSILANES WHICH COMPRISES REACTING HYDROGEN WITH A COMPOUND OF THE TYPE R-C2H4-SIC13 WHERE R IS HYDROGEN OR TRICHLOROSILYL, SAID REACTION OCCURRING IN THE PRESENCE OF A BORON HALIDE AT A TEMPERATURE ABOVE 400*C. AND AT A PRESSURE ABOVE 2500 P. S. I.
References Cited (Backward Citations)
US2406605A
Cited
US2458703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |