US2996592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-break resistance shunted circuit breaker with a vacuum switch as the final interrupter
Assignee: ITE Circuit Breaker Co
•
Filing: 1958-12-30
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Granted: 1961-08-15
•
Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Gustave E Heberlein
- 👤 William A Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:29
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/666; H01H33/02; H01H33/04; H01H33/16; H01H33/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE579464C
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US1783279A
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DE547270C
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GB344867A
Cited
GB392898A
Cited
US2345724A
Cited
US2480622A
Cited
US2748226A
Cited
US2815418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |