US3396355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooled hydrogen or neon used as transformer dielectric
Assignee: Societe Generale de Constructions Electriques et Mecaniques
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Filing: 1964-06-29
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Granted: 1968-08-06
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Hochart Bernard
- 👤 Burnier Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:15
CPC Classifications
H; H01; H01F; H01F30/00; H01F30/06; H01F30/12; H01B; H01B3/00; H01B3/02; H01B3/025; H01F36/00; Y; Y02; Y02E; Y02E40/00; Y02E40/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US650987A
Cited
US2195233A
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US2426413A
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US3173079A
Cited
US3216484A
Cited
US3201728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |