Patent US2472638A successfully refreshed from Google Patents.
US2472638A
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Thermostatic control device
Assignee: Individual
•
Filing: 1946-03-29
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Granted: 1949-06-07
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Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 Everett H White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:04
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H37/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US528189A
Cited
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US2130829A
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US847543A
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US1574508A
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US1767709A
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US1854786A
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US2179792A
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US2197230A
Cited
US2269863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |