Patent US2600312A successfully refreshed from Google Patents.
US2600312A
Expired / Lapsed
US
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Commutator for dynamoelectric machines
Assignee: General Electric Co
•
Filing: 1950-07-06
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Granted: 1952-06-10
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Expires: 1970-07-06
Abstract
No abstract record available.
Inventors
- 👤 Donald R Meier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:08
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011; Y10T29/4902; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US523140A
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US745336A
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US996895A
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US1017945A
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US1506756A
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US1430866A
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US1736988A
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GB477251A
Cited
GB468616A
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US2477455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |