US3466630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sense amplifier including a differential amplifier with input coupled to drive-sense windings
Assignee: Ampex Corp
•
Filing: 1966-08-08
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Granted: 1969-09-09
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Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 David W Mayne
- 👤 Loy Leonard Spears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:21
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/189; H03F3/19; H03F3/195; G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; H03F1/00; H03F1/26; H03F1/34; H03F3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3034107A
Cited
US3168708A
Cited
US3166681A
Cited
US3319233A
Cited
US3315089A
Cited
US3260947A
Cited
US3401351A
Cited
US3309538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |