US2642327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for sound-reproducing apparatus
Assignee: Admiral Corp
•
Filing: 1947-01-09
•
Granted: 1953-06-16
•
Expires: 1967-01-09
Abstract
No abstract record available.
Inventors
- 👤 Edward W Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:56
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1768459A
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US1867676A
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US2125989A
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US2245526A
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US2358917A
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US2296950A
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US2447572A
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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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |