Patent US2438629A successfully refreshed from Google Patents.
US2438629A
Expired / Lapsed
US
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Axial air gap machine
Assignee: Fairbanks Morse and Co
•
Filing: 1944-02-28
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Granted: 1948-03-30
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Expires: 1964-02-28
Abstract
No abstract record available.
Inventors
- 👤 Gordon R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:20
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/18; H02K1/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US957209A
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US1493853A
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US1528336A
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US1509737A
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US1898489A
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US2039199A
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US2157046A
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US2245577A
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US2356972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |