US2889510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two terminal monostable transistor switch
Assignee: AT&T Inc
•
Filing: 1954-12-06
•
Granted: 1959-06-02
•
Expires: 1974-12-06
Abstract
No abstract record available.
Inventors
- 👤 Robert L Carmichael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:25
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2507226A
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US2480795A
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US2491382A
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US2629834A
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US2670445A
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US2676271A
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US2695397A
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US2695398A
Cited
US2771575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |