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US2507216A
Expired / Lapsed
US
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Electric alarm clock control
Assignee: S Smith and Sons Ltd
•
Filing: 1945-01-02
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Granted: 1950-05-09
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Expires: 1965-01-02
Abstract
No abstract record available.
Inventors
- 👤 Moss Eric Beecroft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:02
CPC Classifications
G; G04; G04C; G04C21/00; G04C21/02; G10; G10K; G10K1/00; G10K1/06; G10K1/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |