Patent US2743430A successfully refreshed from Google Patents.
US2743430A
Expired / Lapsed
US
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Information storage devices
Assignee: RCA Corp
•
Filing: 1952-03-01
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Granted: 1956-04-24
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Expires: 1972-03-01
Abstract
No abstract record available.
Inventors
- 👤 Melvin L Schultz
- 👤 George A Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:57
CPC Classifications
H; H10; H10B; H10B69/00; H10F; H10F99/00; G; G11; G11C; G11C13/00; G11C13/04; G11C13/048; H01; H01J; H01J9/00; H01J9/20; H01J9/233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2160383A
Cited
US2258294A
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US2406139A
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US2416215A
Cited
US2540490A
Cited
US2698928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |