Patent US4428934A successfully refreshed from Google Patents.
Patent US3770692A successfully refreshed from Google Patents.
US3770692A
Expired / Lapsed
US
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Colored polymeric microsphere toners
Assignee: Markem Imaje Corp
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Filing: 1971-10-29
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Granted: 1973-11-06
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Expires: 1991-10-29
Abstract
Abstract NOVEL METHOD FOR COLORING SMALL POLYMERIC PARTICLES BY DISPERSING THE PARTICLES IN AN AQUEOUS MEDIUM HAVING A SUFFICIENT AMOUNT OF A WATER MISCRIBLE ORGANIC LIQUID CAPABLE OF SWELLING THE POLYMER AND AN OIL SOLUBLE DYE SOLUBLE IN SAID ORGANIC LIQUID. BY AGITATING THE MIXTURE, THE DYE IS ABSORBED INTO THE POLYMERIC PARTICLES. THE PARTICLES ARE THEN WASHED FREE OF ANY UNABSORBED DYE AND ISOLATED.
Inventors
- 👤 D Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:52
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J3/215; G; G03; G03G; G03G9/00; G03G9/08; G03G9/0802; G03G9/0804; G03G9/087; G03G9/08702; G03G9/08722; Y; Y10; Y10S; Y10S524/00; Y10S524/908
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |