US3247457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog signal peak detector using tapped delay line and sampling means
Assignee: AT&T Inc
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Filing: 1961-05-22
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Granted: 1966-04-19
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Expires: 1981-05-22
Abstract
No abstract record available.
Inventors
- 👤 Reginald A Kaenel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:05
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/153; H03K5/1532; H03D; H03D1/00; H03D1/08; H03D1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2303968A
Cited
US2764678A
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US2836356A
Cited
US2943262A
Cited
US3068417A
Cited
US2996624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |