US2878375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable radio broadcast receiver with removable speaker
Assignee: Sonotone Corp
•
Filing: 1955-02-21
•
Granted: 1959-03-17
•
Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 Irving I Schachtel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/08; H04B1/086; H04B1/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1521650A
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US1954392A
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US1932343A
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US2002390A
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US2159632A
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US2289417A
Cited
US2439411A
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US2539327A
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US2731555A
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US2777902A
Cited
US2828360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |