US3060273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Standby transfer control circuitry
Assignee: AT&T Inc
•
Filing: 1959-11-25
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Granted: 1962-10-23
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Expires: 1979-11-25
Abstract
No abstract record available.
Inventors
- 👤 John S Nowak
- 👤 Ulrich Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
G; G11; G11C; G11C29/00; G11C29/70; G11C29/74; H; H04; H04M; H04M3/00; H04M3/22; H04M3/24; H04M3/241; H04Q; H04Q3/00; H04Q3/42; H04Q3/54; H04Q3/545; H04Q3/54508; H04Q3/54533; H04Q3/54541; H04Q3/54558
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2723311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |