US2689340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alarm clock for radios
Assignee: Individual
•
Filing: 1950-04-05
•
Granted: 1954-09-14
•
Expires: 1970-04-05
Abstract
No abstract record available.
Inventors
- 👤 Sprague John Lane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:34
CPC Classifications
G; G04; G04C; G04C21/00; G04C21/16; G04C21/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1648410A
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US1913699A
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US1955558A
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US2242056A
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US2303693A
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US2309065A
Cited
US2385629A
Cited
US2488754A
Cited
US2485195A
Cited
US2460495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |