US2995687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for sounding an alarm when the incoming signal exceeds a given amplitude
Assignee: Teledyne Ryan Aeronautical Corp
•
Filing: 1958-03-31
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Granted: 1961-08-08
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Expires: 1978-03-31
Abstract
No abstract record available.
Inventors
- 👤 Ted R Mayberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:12
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/2893; G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2428058A
Cited
GB640504A
Cited
US2718613A
Cited
US2848658A
Cited
US2828450A
Cited
US2837663A
Cited
US2879456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |