US2459612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed gas circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1944-12-22
•
Granted: 1949-01-18
•
Expires: 1964-12-22
Abstract
No abstract record available.
Inventors
- 👤 Benjamin P Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:42
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/80; H01H33/82; H01H33/83; Y; Y10; Y10S; Y10S174/00; Y10S174/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1531522A
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US1703409A
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US1928470A
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US1965551A
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US2071965A
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US2153400A
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US2279536A
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US2336316A
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US2306186A
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US2367934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |