US2750532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray devices, particularly for electronic computers
Assignee: International Business Machines Corp
•
Filing: 1948-06-03
•
Granted: 1956-06-12
•
Expires: 1968-06-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:56
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/23
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2107410A
Cited
US2130134A
Cited
US2287296A
Cited
US2374666A
Cited
US2302311A
Cited
US2398552A
Cited
US2358902A
Cited
US2404106A
Cited
US2451484A
Cited
US2441296A
Cited
US2527712A
Cited
US2417450A
Cited
US2457911A
Cited
US2472779A
Cited
US2540016A
Cited
US2681424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |