US2870896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-driven typewriter
Assignee: Rheinmetall AG
•
Filing: 1953-11-25
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Granted: 1959-01-27
•
Expires: 1973-11-25
Abstract
No abstract record available.
Inventors
- 👤 Riffel Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:04
CPC Classifications
B; B41; B41J; B41J5/00; B41J5/08; B41J5/18; B41J5/22; B41J5/24; B41J7/00; B41J7/36; B41J7/42; B41J7/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1579151A
Cited
US1614475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |