US3028583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Information storage calculation system
Assignee: International Business Machines Corp
•
Filing: 1955-08-10
•
Granted: 1962-04-03
•
Expires: 1975-08-10
Abstract
No abstract record available.
Inventors
- 👤 James E Fernekees
- 👤 Harper Leonard Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:04
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/76; G06F15/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2604262A
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US2810516A
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FR1056750A
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US2767908A
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US2850720A
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US2771595A
Cited
US2838745A
Cited
US2808986A
Cited
US2891237A
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US2904776A
Cited
US2849704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |