US3065922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible magnetic tape cartridge
Assignee: LAUX TONBILDSCHAU KG
•
Filing: 1961-07-25
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Granted: 1962-11-27
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Expires: 1981-07-25
Abstract
No abstract record available.
Inventors
- 👤 Ballauf Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:16
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2353044A
Cited
GB851826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |