Patent US2469834A successfully refreshed from Google Patents.
US2469834A
Expired / Lapsed
US
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Electric clock motor and system
Assignee: SELF WINDING CLOCK Co Inc
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Filing: 1946-09-12
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Granted: 1949-05-10
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Expires: 1966-09-12
Abstract
No abstract record available.
Inventors
- 👤 Maerz Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:56
CPC Classifications
G; G04; G04C; G04C13/00; G04C13/08; G04C13/10; G04C13/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190228539A
Cited
AT35524B
Cited
US1616465A
Cited
FR611450A
Cited
DE673170C
Cited
US1998297A
Cited
US2079151A
Cited
US2149559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |