US2659787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally controlled electric switch
Assignee: ZF International UK Ltd
•
Filing: 1951-04-23
•
Granted: 1953-11-17
•
Expires: 1971-04-23
Abstract
No abstract record available.
Inventors
- 👤 Prickett Alfred Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:09
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/34; B60Q1/38; B60Q1/387; H; H01; H01H; H01H61/00; H01H61/06; H01H61/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2451618A
Cited
US1946894A
Cited
US1958482A
Cited
US2243563A
Cited
US2512268A
Cited
US2514604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |