Patent US3390280A successfully refreshed from Google Patents.
US3390280A
Expired / Lapsed
US
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Semiconductor coupling means for two transistors or groups of transistors
Assignee: Plessey Overseas Ltd
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Filing: 1966-05-24
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Granted: 1968-06-25
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Expires: 1986-05-24
Abstract
No abstract record available.
Inventors
- 👤 Philip M Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:43
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/0175; H03K19/018; H03K19/01806
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2801347A
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US2986652A
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US3001088A
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US2964653A
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US2910634A
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US3138721A
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US3210621A
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US3283170A
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US3209214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |