US2653376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making unitary magnetic pole pieces
Assignee: Motors Liquidation Co
•
Filing: 1949-04-02
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Granted: 1953-09-29
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Expires: 1969-04-02
Abstract
No abstract record available.
Inventors
- 👤 William A Fletcher
- 👤 Carl L Clevenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:47
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/02; H02K15/021; H02K15/022; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/4902; Y10T29/49075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US92494A
Cited
US1297271A
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US1494411A
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US1947867A
Cited
US1994480A
Cited
US2239331A
Cited
US2473371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |