US3376564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means to utilize a conductive strip on a magnetic tape as an indexing device
Assignee: THOMAS W HOLLAND
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Filing: 1964-04-13
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Granted: 1968-04-02
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:59
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/24; G11B15/00; G11B15/005; G11B15/02; G11B15/05; G11B15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |