Patent US2303110A successfully refreshed from Google Patents.
US2991373A
Expired / Lapsed
US
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Device comprising an asymmetrical transistor trigger circuit and two input networks
Assignee: US Philips Corp
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Filing: 1956-01-31
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Granted: 1961-07-04
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Expires: 1976-01-31
Abstract
No abstract record available.
Inventors
- 👤 Morgan Leonard Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:29
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2644897A
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US2761965A
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US2854589A
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US2724061A
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US2843761A
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US2861200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |