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US2554994A
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Electronic switching circuit
Assignee: General Electric Co
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Filing: 1949-02-16
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Granted: 1951-05-29
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Expires: 1969-02-16
Abstract
No abstract record available.
Inventors
- 👤 Burton R Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:24
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/82; H03K3/00; H03K3/02; H03K3/04; H03K3/05; H03K3/06; H03K3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2462275A
Cited
US2404047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |