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Patent US3408584A successfully refreshed from Google Patents.
US3408584A
Expired / Lapsed
US
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Self-excited linear dc amplifier having a bridge input portion
Assignee: Motorola Solutions Inc
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Filing: 1963-10-14
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Granted: 1968-10-29
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Expires: 1983-10-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward J Miller
- 👤 George A Prell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:44
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/387
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |