US2933692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor switching and regenerative pulse amplifier circuit
Assignee: AT&T Inc
•
Filing: 1956-07-31
•
Granted: 1960-04-19
•
Expires: 1976-07-31
Abstract
No abstract record available.
Inventors
- 👤 Stanley T Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:30
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2666818A
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US2757243A
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US2641717A
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US2864961A
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US2838675A
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US2880332A
Cited
US2860195A
Cited
US2843743A
Cited
US2809303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |