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US2650952A
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Recording and reproducing head
Assignee: Shure Inc
•
Filing: 1949-04-13
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Granted: 1953-09-01
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Expires: 1969-04-13
Abstract
No abstract record available.
Inventors
- 👤 Benjamin B Bauer
- 👤 Jr Lee Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:52
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1970424A
Cited
US2245039A
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CH239568A
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US2418542A
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US2423339A
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US2469444A
Cited
US2441679A
Cited
US2493742A
Cited
FR937535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |