US2652487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant band width coupling circuit for television receiver tuners
Assignee: Avco Manufacturing Corp
•
Filing: 1950-07-21
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Granted: 1953-09-15
•
Expires: 1970-07-21
Abstract
No abstract record available.
Inventors
- 👤 Emmery J H Bussard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:14
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/42; H03F1/48; H03F1/50; H03H; H03H7/00; H03H7/01; H03H7/0153; H03H7/0161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR465593A
Cited
US1926173A
Cited
US2052703A
Cited
US2036084A
Cited
GB524499A
Cited
FR853988A
Cited
US2511185A
Cited
US2525566A
Cited
US2581159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |