US3106646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable threshold sensing circuit
Assignee: Collins Radio Co
•
Filing: 1959-06-18
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Granted: 1963-10-08
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Expires: 1979-06-18
Abstract
No abstract record available.
Inventors
- 👤 Robert C Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:56
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/72; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/2893; H03K3/2897
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2888578A
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FR1182024A
Cited
US2840699A
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US2898479A
Cited
US2888527A
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US2943260A
Cited
US2926241A
Cited
US2979627A
Cited
US2904678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |