US3003113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low level differential amplifier
Assignee: Individual
•
Filing: 1958-07-28
•
Granted: 1961-10-03
•
Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward F Macnichol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:25
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/45; H03F3/45071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2638512A
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US2828450A
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US2873320A
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US2959741A
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US2863957A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |