Patent US3420164A successfully refreshed from Google Patents.
US3420164A
Expired / Lapsed
US
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Cyclically operable printing and proportional spacing apparatus
Assignee: Fujitsu Services Ltd
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Filing: 1965-12-20
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Granted: 1969-01-07
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Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Ronald Henry Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:05
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/18; B41J19/60; B41J19/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3128693A
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US3135195A
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US3114491A
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US3154235A
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US3157115A
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US3212435A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |