US2983876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic tuned circuit
Assignee: Blonder Tongue Electronics
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Filing: 1958-06-02
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Granted: 1961-05-09
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Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Ben H Tongue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:21
CPC Classifications
H; H03; H03G; H03G5/00; H03G5/02; H03G5/04; H03F; H03F1/00; H03F1/34; H03F1/36; H03G5/06; H03G5/08; H03G5/10; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1638
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |