Patent US3725066A successfully refreshed from Google Patents.
US3725066A
Expired / Lapsed
US
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Diazo-type multicolor reproduction process
Assignee: Kyocera Mita Industrial Co Ltd
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Filing: 1970-08-31
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Granted: 1973-04-03
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Expires: 1990-08-31
Abstract
Abstract A COLORING MATERIAL IN USE FOR THE DIAZO-TYPE MULTICOLOR REPRODUCTION WHICH COMPRISES A THERMOVOLATILE OR THERMOSUBLIMATIVE ACID ADDITION SALT OF A THERMOVOLATILE OR THERMOSUBLIMATIVE AZO COUPLING COMPONENT HAVING AN AMINO GROUP, AND A DIAZO-TYPE MULTICOLOR REPRODUCTION PROCESS USING SUCH COLORING MATERIAL.
Inventors
- 👤 K Nihyakumen
- 👤 T Aizawa
- 👤 Y Ueda
- 👤 Y Kamezawa
- 👤 T Kouchi
- 👤 T Yokoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:26
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/46; G03C1/00; G03C1/52; G03C1/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |