US2620056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repeat typing mechanism for power-operated typewriters and like machines
Assignee: Royal Typewriter Co Inc
•
Filing: 1950-09-29
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Granted: 1952-12-02
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Expires: 1970-09-29
Abstract
No abstract record available.
Inventors
- 👤 William H Kupper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:19
CPC Classifications
B; B41; B41J; B41J25/00; B41J25/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2043393A
Cited
US2188935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |