US3498569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial tape storage reel drive module
Assignee: Unisys Corp
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Filing: 1967-12-08
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Granted: 1970-03-03
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Expires: 1987-12-08
Abstract
No abstract record available.
Inventors
- 👤 Magne Jarle Kjos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:40
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/54; G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/32; G11B15/56; G11B15/58
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) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |