US1013753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Squirrel-cage rotor for electric motors.
Assignee: CROCKER-WHEELER Co
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Filing: 1910-04-12
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Granted: 1912-01-02
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Expires: 1930-04-12
Abstract
No abstract record available.
Inventors
- 👤 Gano Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:54
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/16; H02K17/18; H02K17/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1915-01-01 | 1915-07-03 | 1916-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-01-01 | 1919-07-03 | 1920-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-01-01 | 1923-07-03 | 1924-01-02 | $7700.00 | Window Closed / Lapsed |