US2623171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic divider
Assignee: International Business Machines Corp
•
Filing: 1950-12-27
•
Granted: 1952-12-23
•
Expires: 1970-12-27
Abstract
No abstract record available.
Inventors
- 👤 Woods-Hill William
- 👤 Davis David Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:27
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/02; G06F7/026
Claims Analysis
Total Claims: 0
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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) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |