US2834289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zero printing device
Assignee: Walther Bueromaschinen GmbH
•
Filing: 1955-12-27
•
Granted: 1958-05-13
•
Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Haberkorn Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:58
CPC Classifications
G; G06; G06C; G06C19/00; G06C19/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1730147A
Cited
US2141333A
Cited
US1812161A
Cited
US2100213A
Cited
US2387861A
Cited
US2381862A
Cited
US2506337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |