US2506629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine structure
Assignee: Electrolux AB
•
Filing: 1947-08-06
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Granted: 1950-05-09
•
Expires: 1967-08-06
Abstract
No abstract record available.
Inventors
- 👤 Bilde Tord Erik Daniel
- 👤 Halldin Carl Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:28
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/12; H02K21/14; H02K21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1031316A
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US1440952A
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US1722284A
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US1974183A
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US1897068A
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US2187033A
Cited
GB494601A
Cited
US2240652A
Cited
US2283763A
Cited
US2323114A
Cited
US2460418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |