US2913681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve-tuned band-pass tuner with variable coupling
Assignee: Aladdin Industries LLC
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Filing: 1957-06-12
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Granted: 1959-11-17
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Expires: 1977-06-12
Abstract
No abstract record available.
Inventors
- 👤 Harold T Lyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:22
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/0153; H03H7/0161; H03H7/17; H03H7/1741; H03H7/1758
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1798012A
Cited
US2250366A
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US2477693A
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US2511185A
Cited
US2641708A
Cited
US2645718A
Cited
US2753530A
Cited
US2786945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |