US2498259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatically actuated control system
Assignee: Westinghouse Electric Corp
•
Filing: 1945-02-22
•
Granted: 1950-02-21
•
Expires: 1965-02-22
Abstract
No abstract record available.
Inventors
- 👤 William B Elmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:03
CPC Classifications
H; H01; H01H; H01H61/00; H01H61/02; F; F42; F42B; F42B19/00; F42B19/12; F42B19/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1010414A
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US1652527A
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US1818873A
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US1947037A
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US2080244A
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US2171895A
Cited
US2284383A
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US2302399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |