Patent US2869684A successfully refreshed from Google Patents.
US2869684A
Expired / Lapsed
US
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Tape feeding system
Assignee: Unisys Corp
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Filing: 1954-08-05
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Granted: 1959-01-20
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Expires: 1974-08-05
Abstract
No abstract record available.
Inventors
- 👤 Robert R Tarbuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:20
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR34421E
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US1395830A
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US1890031A
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US1875111A
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US1952196A
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US2000918A
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US2226090A
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US2311175A
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US2346756A
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DE838404C
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US2750006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |