US2898041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instruction modifier means for electronic digital computing machines
Assignee: International Business Machines Corp
•
Filing: 1953-12-21
•
Granted: 1959-08-04
•
Expires: 1973-12-21
Abstract
No abstract record available.
Inventors
- 👤 Crawley Hubert John
- 👤 Strachey Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/34; G06F9/355
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2810516A
Cited
US2800277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |