Patent US2452508A successfully refreshed from Google Patents.
US2452508A
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Snap action thermal limit switch
Assignee: Individual
•
Filing: 1945-12-18
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Granted: 1948-10-26
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Expires: 1965-12-18
Abstract
No abstract record available.
Inventors
- 👤 Ulanet Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:20
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/60; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896; Y10T74/18904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1315602A
Cited
US1855707A
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US1976843A
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US2208432A
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US2215384A
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US2262355A
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US2345240A
Cited
US2434984A
Cited
US2394121A
Cited
US2413130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |