US2584458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostat safety control
Assignee: Robertshaw Controls Co
•
Filing: 1946-01-14
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Granted: 1952-02-05
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Expires: 1966-01-14
Abstract
No abstract record available.
Inventors
- 👤 James H Hurlbut
- 👤 Charles R Heininger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/024; G05D23/026; G05D23/027; F; F23; F23Q; F23Q9/00; F23Q9/08; F23Q9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1952440A
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US2201398A
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US2210446A
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US2201399A
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US2213844A
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US2328642A
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US2361944A
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US2353759A
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US2372537A
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US2414220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |