US3418440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-blast circuit breaker
Assignee: General Electric Co
•
Filing: 1965-09-14
•
Granted: 1968-12-24
•
Expires: 1985-09-14
Abstract
No abstract record available.
Inventors
- 👤 John W Beatty
- 👤 Mcneir George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/86; H01H33/02; H01H33/04; H01H33/18; H01H33/7015; H01H33/7069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1827516A
Cited
GB358554A
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GB475370A
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US2724751A
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US2773155A
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US2897324A
Cited
US3167630A
Cited
US3110791A
Cited
US3185802A
Cited
US3238340A
Cited
US3270173A
Cited
US3358102A
Cited
US3257533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |