Patent US3393790A successfully refreshed from Google Patents.
US3393790A
Expired / Lapsed
US
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Ribbon spools
Assignee: Columbia Ribbon and Carbon Manufacturing Co Inc
•
Filing: 1966-07-29
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Granted: 1968-07-23
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Expires: 1986-07-29
Abstract
No abstract record available.
Inventors
- 👤 Harold F E Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:07
CPC Classifications
B; B41; B41J; B41J33/00; B41J33/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1013882A
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US1578231A
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DE681482C
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US2652918A
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US2974892A
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US2930470A
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US3152678A
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US3145823A
Cited
US3195828A
Cited
US3323743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |