Patent US2828447A successfully refreshed from Google Patents.
US2828447A
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Neon capacitor memory system
Assignee: Unisys Corp
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Filing: 1954-09-28
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Granted: 1958-03-25
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Expires: 1974-09-28
Abstract
No abstract record available.
Inventors
- 👤 John W Mauchly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:30
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/18; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/403; Y; Y10; Y10S; Y10S84/00; Y10S84/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |