US2488487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of alkyl silicon halides
Assignee: Dow Chemical Co
•
Filing: 1946-02-07
•
Granted: 1949-11-15
•
Expires: 1966-02-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Barry
- 👤 Pree Lee De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:49
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2380996A
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US2380997A
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US2380995A
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US2380998A
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US2381000A
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US2381002A
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US2381001A
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US2380999A
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US2383818A
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US2389931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |