US3471726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous dynamo-electric machines
Assignee: Societe Generale de Constructions Electriques et Mecaniques
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Filing: 1965-10-07
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Granted: 1969-10-07
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Expires: 1985-10-07
Abstract
No abstract record available.
Inventors
- 👤 Pierre Henri Burnier
- 👤 Andre Edouard Wolfhugel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:51
CPC Classifications
H; H02; H02K; H02K55/00; H02K55/02; H02K55/04; H02K11/00; H02K11/04; H02K11/042; H02K3/00; H02K3/04; H02K3/22; H02K3/24; Y; Y02; Y02E; Y02E40/00; Y02E40/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3021433A
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US3145314A
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US3121808A
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US3154706A
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US3368087A
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US3289019A
Cited
US3374408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |