US2788879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Information recording apparatus
Assignee: Unisys Corp
•
Filing: 1955-10-04
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Granted: 1957-04-16
•
Expires: 1975-10-04
Abstract
No abstract record available.
Inventors
- 👤 James H Rand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:35
CPC Classifications
B; B41; B41J; B41J3/00; B41J3/44; B41J3/50; B41J3/51
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US480314A
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US855559A
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US1439184A
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US2055016A
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US2350893A
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US2317170A
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US2508953A
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US2638199A
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US2749985A
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US2751433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |