Patent US2561202A successfully refreshed from Google Patents.
US2561202A
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US
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Constant current open circuit protective system
Assignee: General Electric Co
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Filing: 1948-02-07
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Granted: 1951-07-17
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Expires: 1968-02-07
Abstract
No abstract record available.
Inventors
- 👤 Philip H Houser
- 👤 Peterson Justin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:14
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/18; B64F1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1335256A
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US1298665A
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US1821342A
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US2177900A
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US2226041A
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US2304986A
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US2350610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |