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US2600523A
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Polyphase alternating current dynamoelectric apparatus
Assignee: Individual
•
Filing: 1949-05-24
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Granted: 1952-06-17
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Expires: 1969-05-24
Abstract
No abstract record available.
Inventors
- 👤 Charles E Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
H; H02; H02K; H02K99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1086096A
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US1227185A
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US1559920A
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US1514474A
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US1776518A
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US2006172A
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US2470767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |