US2950465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic data processing machine
Assignee: International Business Machines Corp
•
Filing: 1954-03-22
•
Granted: 1960-08-23
•
Expires: 1974-03-22
Abstract
No abstract record available.
Inventors
- 👤 Philip E Fox
- 👤 John E Bartelt
- 👤 David J Crawford
- 👤 Rochester Nathaniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:05
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2807005A
Cited
US2599949A
Cited
US2671607A
Cited
US2681424A
Cited
US2604262A
Cited
US2777635A
Cited
US2642550A
Cited
GB749836A
Cited
US2902675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |