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Patent US2870433A successfully refreshed from Google Patents.
US2870433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage devices
Assignee: GE Healthcare UK Ltd
•
Filing: 1955-07-20
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Granted: 1959-01-20
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Expires: 1975-07-20
Abstract
No abstract record available.
Inventors
- 👤 Anthony W Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:33
CPC Classifications
H; H03; H03K; H03K21/00; G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2452529A
Cited
US2792563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |