US2640652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible coil winding mechanism for stator winding machines
Assignee: Individual
•
Filing: 1949-09-23
•
Granted: 1953-06-02
•
Expires: 1969-09-23
Abstract
No abstract record available.
Inventors
- 👤 Thaddeus F Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:10
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/08; H02K15/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1370744A
Cited
US1431947A
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US1504253A
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US1612026A
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US2027735A
Cited
US2197117A
Cited
US2445937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |