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Patent US2486573A successfully refreshed from Google Patents.
US2486573A
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Thermostatically controlled valve
Assignee: CLEVELAND RES CORP
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Filing: 1947-01-21
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Granted: 1949-11-01
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Expires: 1967-01-21
Abstract
No abstract record available.
Inventors
- 👤 Milton F Pravda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:05
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/185; G05D23/1854
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1466243A
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US1985100A
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US2310594A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |