US2919355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-stable transistor circuit
Assignee: GTE Sylvania Inc
•
Filing: 1953-12-31
•
Granted: 1959-12-29
•
Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 Huang Chaang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:49
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2533001A
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US2605306A
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US2691075A
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US2622212A
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US2666819A
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US2663806A
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US2644896A
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US2641717A
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US2726370A
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US2791644A
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US2663800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |