US2623455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing device for calculating machines
Assignee: Centre National de la Recherche Scientifique
•
Filing: 1950-03-13
•
Granted: 1952-12-30
•
Expires: 1970-03-13
Abstract
No abstract record available.
Inventors
- 👤 Pierre L Couffignal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
G; G06; G06C; G06C11/00; G06C11/04; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2133
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2141333A
Cited
US1122191A
Cited
US1465871A
Cited
US1508532A
Cited
US1951682A
Cited
US2175530A
Cited
US2232528A
Cited
US2506337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |