US2858928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbon feeding mechanism
Assignee: International Business Machines Corp
•
Filing: 1956-12-24
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Granted: 1958-11-04
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Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Truman K Bristoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:21
CPC Classifications
B; B41; B41J; B41J33/00; B41J33/14; B41J33/16; B41J33/22; B41J33/40; B41J33/44; B41J33/51; B41J33/518
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US831935A
Cited
US1781725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |