US2743357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sweep circuit
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1952-04-26
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Granted: 1956-04-24
•
Expires: 1972-04-26
Abstract
No abstract record available.
Inventors
- 👤 Robert F Casey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:01
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/12; H03K4/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1959010A
Cited
US2232076A
Cited
US2210394A
Cited
US2412063A
Cited
US2448070A
Cited
US2597322A
Cited
US2554172A
Cited
US2606287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |