US2580787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse-actuated program device
Assignee: International Business Machines Corp
•
Filing: 1947-08-12
•
Granted: 1952-01-01
•
Expires: 1967-08-12
Abstract
No abstract record available.
Inventors
- 👤 Reynold B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:58
CPC Classifications
G; G04; G04C; G04C23/00; G04C23/14; G04C23/26; C; C07; C07C; C07C253/00; C07C253/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US438653A
Cited
US1172080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |