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US3466642A
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US
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Method and device for automatic leakage detection in liquid-pressure insulated power cables
Assignee: Trefimetaux SAS
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Filing: 1967-03-20
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Granted: 1969-09-09
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Expires: 1987-03-20
Abstract
No abstract record available.
Inventors
- 👤 Guy Terramorsi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:19
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/16; G01M3/18; G01M3/181; G01M3/26; G01M3/28; G01M3/2838
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2040285A
Cited
US2092560A
Cited
US2244392A
Cited
US2924965A
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US3012432A
Cited
US3046369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |