US2626008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical precipitator
Assignee: Westinghouse Electric Corp
•
Filing: 1947-01-02
•
Granted: 1953-01-20
•
Expires: 1967-01-02
Abstract
No abstract record available.
Inventors
- 👤 Robert L Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:49
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/86
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE325956C
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FR467267A
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DE337490C
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FR581530A
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US1575165A
Cited
US1843510A
Cited
US2100155A
Cited
US2297601A
Cited
US2555339A
Cited
US2502560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |