US2498462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clock setting system
Assignee: SPERTI FARADAY Inc
•
Filing: 1942-08-29
•
Granted: 1950-02-21
•
Expires: 1962-08-29
Abstract
No abstract record available.
Inventors
- 👤 Lewis J Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:29
CPC Classifications
G; G04; G04C; G04C11/00; G04C11/005; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19451; Y10T74/19456; Y10T74/1956
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1622588A
Cited
US1822144A
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US1887221A
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US2248164A
Cited
US2167829A
Cited
US2026368A
Cited
FR790914A
Cited
US2101432A
Cited
US2120353A
Cited
US2289636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |