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US3403306A
Expired / Lapsed
US
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Semiconductor device having controllable noise characteristics
Assignee: TDK Micronas GmbH
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Filing: 1966-01-20
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Granted: 1968-09-24
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Expires: 1986-01-20
Abstract
No abstract record available.
Inventors
- 👤 Roland H Haitz
- 👤 Farrington David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:30
CPC Classifications
H; H03; H03B; H03B29/00; H10; H10D; H10D99/00; H10F; H10F99/00; H10H; H10H20/00; H10H20/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3007090A
Cited
US3229104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |