US2817756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable bandwidth constant peak-amplitude discriminator
Assignee: Individual
•
Filing: 1952-06-03
•
Granted: 1957-12-24
•
Expires: 1972-06-03
Abstract
No abstract record available.
Inventors
- 👤 Charles A Debel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:48
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/06; H03D3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2068112A
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US2248343A
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US2278801A
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US2253942A
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US2304978A
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US2356201A
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US2357932A
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US2464125A
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US2605358A
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US2576329A
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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) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |