US3429415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tab programming control system by means of codes
Assignee: Ricoh Co Ltd
•
Filing: 1967-10-17
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Granted: 1969-02-25
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Expires: 1987-10-17
Abstract
No abstract record available.
Inventors
- 👤 Shinichi Hirata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:25
CPC Classifications
B; B41; B41J; B41J25/00; B41J25/02; B41J25/18; B41J5/00; B41J5/30; B41J5/31; B41J5/36; B41J5/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1082033A
Cited
US1508911A
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US1930252A
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US2581227A
Cited
US2860759A
Cited
US2936871A
Cited
US3294213A
Cited
US3283872A
Cited
US3333669A
Cited
US3346088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |