US2945622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ten-keys key board for calculating machines
Assignee: Precisia A G
•
Filing: 1956-02-10
•
Granted: 1960-07-19
•
Expires: 1976-02-10
Abstract
No abstract record available.
Inventors
- 👤 Heinze Werner
- 👤 Julich Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:52
CPC Classifications
G; G06; G06C; G06C7/00; G06C7/02; G06C7/08; G06C7/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |