US2469355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of alkylhoalosilanes
Assignee: Dow Chemical Co
•
Filing: 1946-11-13
•
Granted: 1949-05-10
•
Expires: 1966-11-13
Abstract
No abstract record available.
Inventors
- 👤 Pree Lee De
- 👤 Arthur J Barry
- 👤 Donald E Hook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:05
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/121; C07F7/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2379821A
Cited
US2407181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |