US3528536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbon feed mechanism for a single pass ribbon
Assignee: International Business Machines Corp
•
Filing: 1967-03-15
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Granted: 1970-09-15
•
Expires: 1987-03-15
Abstract
No abstract record available.
Inventors
- 👤 Allison H Caudill
- 👤 Willie Goff Jr
- 👤 Leon E Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:25
CPC Classifications
B; B41; B41J; B41J33/00; B41J33/14; B41J33/54; B41J33/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US415529A
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US654028A
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US1064703A
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US1015594A
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US1069985A
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US1198505A
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US3171530A
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US3349888A
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US3346090A
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US3349887A
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US3442366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |