US2946045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital memory system
Assignee: Individual
•
Filing: 1956-04-20
•
Granted: 1960-07-19
•
Expires: 1976-04-20
Abstract
No abstract record available.
Inventors
- 👤 Goto Eiichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:04
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/26; G11C11/19; G11C11/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2574438A
Cited
US2614167A
Cited
US2697825A
Cited
US2770739A
Cited
US2845611A
Cited
US2721947A
Cited
US2783456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |