Patent US2871401A successfully refreshed from Google Patents.
US2871401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for storing information in an electronic storage tube
Assignee: Telefonaktiebolaget LM Ericsson AB
•
Filing: 1954-02-25
•
Granted: 1959-01-27
•
Expires: 1974-02-25
Abstract
No abstract record available.
Inventors
- 👤 Sternbeck Olaf
- 👤 Uhlmann Wolfram Erhard Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:19
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/26; G11C11/265
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |