US3788873A
Expired / Lapsed
US
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Fixing method utilizing intermediate heat transfer
Assignee: Xerox Corp
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Filing: 1971-03-02
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Granted: 1974-01-29
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Expires: 1991-03-02
Abstract
Abstract A METHOD FOR AFFIXING ELECTROSCOPIC TONER IMAGES ONTO A SUPPORT BY UTILIZING AN INTERMEDIARY AS A HEAT TRANSFER MEDIUM. A QUANTITY OF PARTICULATE MATERIAL IS HEATED TO A TEMPERATURE SUFFICIENT TO PRODUCE AT LEAST A PARTIAL MELTING OF THE PARTICULAR TONER MATERIAL TO BE FUSED AND THE TONER MATERIAL ON THE SUPPORT IS THEN CONTACTED WITH THE HEATED PARTICULATE MATERIAL TO INDUCE A TRANSFER OF THE THERMAL ENERGY IN THE PARTICULATE MATERIAL TO THE TONER MATERIAL ON THE SUPPORT.
Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:31
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24479; Y10T428/24595; Y10T428/24802; Y10T428/24835; Y10T428/24893
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |