US2802124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed short-circuited rotor
Assignee: C O OBERG AND CO S AB
•
Filing: 1955-02-28
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Granted: 1957-08-06
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Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Sjoblom Anders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 00:57
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/02; H02K17/00; H02K17/02; H02K17/16; H02K17/168; Y; Y10; Y10S; Y10S29/00; Y10S29/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |