US2646471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency response control means for high-frequency amplifiers
Assignee: Lanteris Space LLC
•
Filing: 1950-09-06
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Granted: 1953-07-21
•
Expires: 1970-09-06
Abstract
No abstract record available.
Inventors
- 👤 Oliver F Cheney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:35
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/44; H04N5/4446
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2093556A
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US2185879A
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US2243141A
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US2435960A
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US2394544A
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US2455510A
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US2540532A
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US2522567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |