Patent US2613253A successfully refreshed from Google Patents.
US2613253A
Expired / Lapsed
US
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Electrical control
Assignee: ELECTRONIC RES AND Manufacturing CORP
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Filing: 1946-12-07
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Granted: 1952-10-07
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Expires: 1966-12-07
Abstract
No abstract record available.
Inventors
- 👤 George H Lister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:08
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/30; H01H43/301; H01H43/302
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1960068A
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US2009601A
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US2141654A
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US2146862A
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US2171984A
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US2246046A
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US2267098A
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US2277000A
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US2419546A
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US2379262A
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US2414443A
Cited
US2524325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |