US2914752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Information storage system
Assignee: Unisys Corp
•
Filing: 1955-05-09
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Granted: 1959-11-24
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Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Duncan N Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:10
CPC Classifications
H; H04; H04L; H04L13/00; H04L13/02; H04L13/08; G; G06; G06K; G06K17/00; G06K17/0003; G06K17/0012; G11; G11B; G11B15/00; G11B15/675; G11B15/68; G11B15/6895
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1196335A
Cited
US2227259A
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US2481398A
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US2551198A
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US2674728A
Cited
US2690913A
Cited
US2733425A
Cited
US2722676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |