US2436427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impedance transformer
Assignee: Unisys Corp
•
Filing: 1943-02-18
•
Granted: 1948-02-24
•
Expires: 1963-02-18
Abstract
No abstract record available.
Inventors
- 👤 Edward L Ginzton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:03
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1927393A
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US2125597A
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US2127408A
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US2192494A
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US2157855A
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US2297266A
Cited
US2297516A
Cited
US2373233A
Cited
US2408745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-23 | 1951-08-25 | 1952-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-23 | 1955-08-25 | 1956-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-23 | 1959-08-25 | 1960-02-24 | $7700.00 | Window Closed / Lapsed |