Patent US3045776A successfully refreshed from Google Patents.
US3045776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speaker mounting device
Assignee: Sony Corp
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Filing: 1959-03-25
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Granted: 1962-07-24
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Expires: 1979-03-25
Abstract
No abstract record available.
Inventors
- 👤 Igarashi Tadashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:28
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932459A
Cited
US1970837A
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US2020705A
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US2853145A
Cited
US2974204A
Cited
US2821260A
Cited
US2848059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |