US3365702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic-tape information storage and retrieval
Assignee: HERNER AND CO
•
Filing: 1964-01-14
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Granted: 1968-01-23
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Expires: 1984-01-14
Abstract
No abstract record available.
Inventors
- 👤 Henry T Heatwole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:04
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/102; G11B27/107; G06; G06F; G06F16/00; G06F16/90; G06F16/903; G06F16/90335; G06F16/90344
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |