Patent US2848657A successfully refreshed from Google Patents.
US2848657A
Expired / Lapsed
US
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Overheat safety device
Assignee: Stewart Warner Corp
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Filing: 1953-10-20
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Granted: 1958-08-19
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Expires: 1973-10-20
Abstract
No abstract record available.
Inventors
- 👤 John T Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:08
CPC Classifications
F; F24; F24D; F24D5/00; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1927; G05D23/1928; G05D23/20; G05D23/24
Claims Analysis
Total Claims: 0
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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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |