Patent US2471457A successfully refreshed from Google Patents.
US2471457A
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Time and thermostatically controlled switching arrangement
Assignee: International Standard Electric Corp
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Filing: 1944-07-17
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Granted: 1949-05-31
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Expires: 1964-07-17
Abstract
No abstract record available.
Inventors
- 👤 Shepard Stanley Carden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:22
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/30; H01H43/308; H01C; H01C7/00; H01C7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE397158C
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US2034881A
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US2148491A
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DE640150C
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US2112542A
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US2244058A
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US2304613A
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US2318358A
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GB557707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |