US2516865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic balancing and follower circuits
Assignee: Unisys Corp
•
Filing: 1945-05-18
•
Granted: 1950-08-01
•
Expires: 1965-05-18
Abstract
No abstract record available.
Inventors
- 👤 Edward L Ginzton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:59
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/26; H03F3/28; G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; H03F1/00; H03F1/34; H03F1/36; H03F3/34; H03F3/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2151917A
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US2237604A
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US2172395A
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US2287334A
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US2208379A
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US2240635A
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US2284064A
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US2404387A
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US2397961A
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US2383351A
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US2404011A
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US2390824A
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US2428541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |