US2963139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line spacing control for record feeding devices
Assignee: International Business Machines Corp
•
Filing: 1959-02-24
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Granted: 1960-12-06
•
Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Andreessen Paul
- 👤 Arthur J Folmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:23
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/36; B41J11/42; B41J11/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2659008A
Cited
US2747717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |