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Patent US2507971A successfully refreshed from Google Patents.
US2507971A
Expired / Lapsed
US
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Circuit breaker
Assignee: Forges et Ateliers de Constructions Electriques de Jeumont SA
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Filing: 1946-06-10
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Granted: 1950-05-16
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Expires: 1966-06-10
Abstract
No abstract record available.
Inventors
- 👤 Guillaume Andre
- 👤 Thibaudat Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:32
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/72; H01H33/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US438118A
Cited
US1537352A
Cited
US1566091A
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US1899605A
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US2051196A
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US2100753A
Cited
FR833188A
Cited
US2239243A
Cited
FR852550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |