Patent US3531195A successfully refreshed from Google Patents.
US3531195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for multicolor printing
Assignee: Hitachi Ltd
•
Filing: 1967-09-27
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Granted: 1970-09-29
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Expires: 1987-09-27
Abstract
No abstract record available.
Inventors
- 👤 Makoto Tanaka
- 👤 Keiji Yoshida
- 👤 Kazuyoshi Kawafune
- 👤 Hiroshi Kitagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:27
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/01; G03G15/0142; G03G15/0147; G03G15/0152; G03G15/0163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2566264A
Cited
US2571697A
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US2752833A
Cited
US3045644A
Cited
US3060020A
Cited
US3057720A
Cited
US3230303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |