Patent US2840760A successfully refreshed from Google Patents.
US2840760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply
Assignee: Motorola Solutions Inc
•
Filing: 1957-06-14
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Granted: 1958-06-24
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Expires: 1977-06-14
Abstract
No abstract record available.
Inventors
- 👤 James A Torrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:57
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/52; H03F1/54; H03F1/546
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1893223A
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US1997011A
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US1921461A
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US2110690A
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US2085642A
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US2112080A
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US2104844A
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US2248623A
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US2410369A
Cited
US2484112A
Cited
US2656487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |