US2939086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage transformer
Assignee: General Electric Co
•
Filing: 1955-05-04
•
Granted: 1960-05-31
•
Expires: 1975-05-04
Abstract
No abstract record available.
Inventors
- 👤 Willem F Westendorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:02
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/32; H01F27/324; H01F27/34; H01F27/36; H01F27/363; H05; H05G; H05G1/00; H05G1/02; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735979A
Cited
US1440760A
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US1758820A
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AT142746B
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CH199828A
Cited
US2352166A
Cited
US2461098A
Cited
US2577707A
Cited
US2686904A
Cited
US2820142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |