US3788930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fixing images obtained by liquid development in electrophotography
Assignee: Fujifilm Holdings Corp
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Filing: 1971-10-29
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Granted: 1974-01-29
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Expires: 1991-10-29
Abstract
Abstract A METHOD OF PERMANENTLY FIXING A TONER IMAGE ON AN ELECTROPHOTOGRAPHIC SENSITIVE MATERIAL, SAID TONER IMAGE BEING FORMED BY DEVELOPING AN ELECTROSTATIC LATENT IMAGE PROVIDED ON THE PHOTOCONDUCTIVE COATING OF SAID MATERIAL WITH A LIQUID DEVELOPER COMPRISING A CHARGED TONER DISPERSED IN A VOLATILE INSULATING CARRIER LIQUID, COMPRISING LAMINATING A TRANSPARENT PLASTIC FILM BY MEANS OF AN ADHESIVE LAYER PROVIDED ON SAID FILM ON SAID TONER-IMAGE BEARING SURFACE BY HEAT AND/OR PRESSURE WHILE SAID MATERIAL IS WET WITH THE VOLATILE LIQUID USED IN THE TREATMENT OF SAID MATERIAL TO ASSIST THE LAMINATION OF SAID FILM ONTO SAID TONER-IMAGE BEARING SURFACE.
Inventors
- 👤 S Honjo
- 👤 O Fukushima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:05
CPC Classifications
G; G03; G03G; G03G8/00; G03G11/00; G03G13/00; G03G13/20
Claims Analysis
Total Claims: 0
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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 |