US2647161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double triode clamping circuit for direct current reinsertion
Assignee: Motorola Solutions Inc
•
Filing: 1947-09-17
•
Granted: 1953-07-28
•
Expires: 1967-09-17
Abstract
No abstract record available.
Inventors
- 👤 Schlesinger Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:48
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/16; H04N5/18; H04N5/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2438947A
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US2525106A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |