US2657748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for producing signals at predetermined intervals
Assignee: Individual
•
Filing: 1952-01-30
•
Granted: 1953-11-03
•
Expires: 1972-01-30
Abstract
No abstract record available.
Inventors
- 👤 Max E Snoddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:39
CPC Classifications
G; G04; G04C; G04C23/00; G04C23/14; G04C23/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1831605A
Cited
US2224593A
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US2587026A
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US2585839A
Cited
US2488110A
Cited
US2582285A
Cited
US2553846A
Cited
US2549025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |