US2675109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-operated typewriting and like machines
Assignee: Underwood Corp
•
Filing: 1951-11-15
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Granted: 1954-04-13
•
Expires: 1971-11-15
Abstract
No abstract record available.
Inventors
- 👤 Harry C Yaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:16
CPC Classifications
B; B41; B41J; B41J23/00; B41J23/02; B41J23/04; B41J23/06; B41J7/00; B41J7/92; B41J7/94
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2474741A
Cited
US2506444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |