US2992399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillator amplitude control
Assignee: AT&T Inc
•
Filing: 1954-09-17
•
Granted: 1961-07-11
•
Expires: 1974-09-17
Abstract
No abstract record available.
Inventors
- 👤 Earl K Van Tassel
- 👤 Robert E Yaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:27
CPC Classifications
H; H03; H03L; H03L5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2230091A
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US2275452A
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US2303862A
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US2375575A
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US2485731A
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US2652460A
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US2594336A
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US2713162A
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US2714702A
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US2760087A
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US2655608A
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US2693572A
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US2692343A
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US2703368A
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US2789254A
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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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |