US2586642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric alarm clock
Assignee: International Register Co
•
Filing: 1946-06-07
•
Granted: 1952-02-19
•
Expires: 1966-06-07
Abstract
No abstract record available.
Inventors
- 👤 William P Callagher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:20
CPC Classifications
G; G04; G04C; G04C21/00; G04C21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US584470A
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US550718A
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FR414016A
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US1046879A
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CH75991A
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US1934387A
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US2020388A
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US2006758A
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US2091770A
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US2211426A
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US2335904A
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US2491103A
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US2465492A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |