US2490362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record controlled calculating machine
Assignee: International Business Machines Corp
•
Filing: 1945-12-21
•
Granted: 1949-12-06
•
Expires: 1965-12-21
Abstract
No abstract record available.
Inventors
- 👤 Clair D Lake
- 👤 Benjamin M Durfee
- 👤 Arthur H Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/40; G06F7/44; G06F7/446
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2165298A
Cited
US2120228A
Cited
US2176933A
Cited
US2126666A
Cited
US2185697A
Cited
US2228330A
Cited
US2350499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |