US2925585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric charge storage apparatus
Assignee: International Business Machines Corp
•
Filing: 1958-09-17
•
Granted: 1960-02-16
•
Expires: 1978-09-17
Abstract
No abstract record available.
Inventors
- 👤 George D Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:21
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2175900A
Cited
US2249819A
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US2284101A
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US2666139A
Cited
US2652460A
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US2735011A
Cited
US2655609A
Cited
US2883454A
Cited
US2663800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |