US2849659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct-current and alternatingcurrent circuit interrupters
Assignee: Siemens Schuckertwerke AG
•
Filing: 1954-03-24
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Granted: 1958-08-26
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Expires: 1974-03-24
Abstract
No abstract record available.
Inventors
- 👤 Fritz Kesselring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:23
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/59; H01H33/596; H01H9/00; H01H9/54; H02; H02M; H02M1/00; H02M1/0048; H02M1/0054; H02M1/0058; H02M1/32; H02M1/34; H02M1/344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1681196A
Cited
US1873048A
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US2094361A
Cited
US2207969A
Cited
US2246064A
Cited
US2470825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |