US3416442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective hammer actuating means in chain printers
Assignee: International Business Machines Corp
•
Filing: 1967-06-20
•
Granted: 1968-12-17
•
Expires: 1987-06-20
Abstract
No abstract record available.
Inventors
- 👤 Brown Edgar Alan
- 👤 Albert S Chou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:44
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2993437A
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US3220343A
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US3157115A
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US3303775A
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US3289576A
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US3342127A
Cited
US3332343A
Cited
US3354816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |