US2964646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic bistable or control circuit
Assignee: RCA Corp
•
Filing: 1957-03-07
•
Granted: 1960-12-13
•
Expires: 1977-03-07
Abstract
No abstract record available.
Inventors
- 👤 Howard D Helms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:33
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2182377A
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US2517960A
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US2675474A
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US2691074A
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US2704792A
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US2714702A
Cited
US2629833A
Cited
US2763832A
Cited
US2760109A
Cited
US2888648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |