US2753473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-cleaning dynamoelectric machine
Assignee: General Electric Co
•
Filing: 1953-07-01
•
Granted: 1956-07-03
•
Expires: 1973-07-01
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Hamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/02; H02K9/04; H02K9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE560135C
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US982830A
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US1137510A
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US1011944A
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GB319479A
Cited
US1794663A
Cited
US1794649A
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US2200126A
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US2436930A
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FR967315A
Cited
FR977165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |