Patent US2917588A successfully refreshed from Google Patents.
US2917588A
Expired / Lapsed
US
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Apparatus for recording and playback
Assignee: Texas Instruments Inc
•
Filing: 1953-08-31
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Granted: 1959-12-15
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Expires: 1973-08-31
Abstract
No abstract record available.
Inventors
- 👤 White Gale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:23
CPC Classifications
G; G11; G11B; G11B5/00; G03; G03G; G03G19/00; G11B11/00; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US831779A
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US934600A
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US1152562A
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US1218324A
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US1580112A
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GB371329A
Cited
FR703916A
Cited
US1940274A
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US2616984A
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US2670749A
Cited
US2614901A
Cited
US2676868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |