US2709959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-line printing mechanism
Assignee: International Business Machines Corp
•
Filing: 1950-08-19
•
Granted: 1955-06-07
•
Expires: 1970-08-19
Abstract
No abstract record available.
Inventors
- 👤 Horace S Beattie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:13
CPC Classifications
B; B41; B41L; B41L39/00
Claims Analysis
Total Claims: 0
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US1997167A
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US2464561A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |