Patent US3464533A successfully refreshed from Google Patents.
US3464533A
Expired / Lapsed
US
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Carbon ribbon supply handling features in a typewriter
Assignee: Olivetti Underwood Corp
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Filing: 1966-10-14
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Granted: 1969-09-02
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Expires: 1986-10-14
Abstract
No abstract record available.
Inventors
- 👤 Reginald R Gallant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:55
CPC Classifications
B; B41; B41J; B41J33/00; B41J33/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3104750A
Cited
US3123196A
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US2565985A
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US2930470A
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US3048254A
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US3191742A
Cited
US3180572A
Cited
US3294228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |