Patent US2946127A successfully refreshed from Google Patents.
US2946127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape indexing
Assignee: Individual
•
Filing: 1955-01-17
•
Granted: 1960-07-26
•
Expires: 1975-01-17
Abstract
No abstract record available.
Inventors
- 👤 Loewe Siegmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:47
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1300257A
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US1685904A
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US1535520A
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US1564964A
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US1593753A
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US1946924A
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US1985228A
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US2713209A
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US2802290A
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US2912763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |