Patent US2847657A successfully refreshed from Google Patents.
US2847657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage of electrical intelligence
Assignee: International Standard Electric Corp
•
Filing: 1954-05-19
•
Granted: 1958-08-12
•
Expires: 1974-05-19
Abstract
No abstract record available.
Inventors
- 👤 Hartley George Clifford
- 👤 Bray Frederick Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:28
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/02; G06F7/22; H; H04; H04M; H04M15/00; H04M15/04
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) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |