US3791823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectrophoretic imaging transfer method
Assignee: Xerox Corp
•
Filing: 1970-02-18
•
Granted: 1974-02-12
•
Expires: 1990-02-18
Abstract
Abstract An electrophoretic imaging system is described in which a particulate image is transferred to a receiving sheet having a water tackifiable surface. The surface is moistened, pressed against the image and dried. In a preferred embodiment, the water tackifiable material is converted to a water insoluble form by heat after transfer of the image.
Inventors
- 👤 L Carreira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:44
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/24; G03G13/00; G03G13/14; G03G13/16; G03G13/20; G03G15/14; G03G15/16; G03G15/1695; G03G15/20; G03G17/00; G03G17/04; G03G17/10; G03G7/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
12 words
The method of claim 1 wherein said tackifiable surface comprises polyethylene glycol.
Claim 2
Dependent Claim
24 words
The method of claim 1 wherein said tackifiable surface comprises a mixture of polyvinyl alcohol and a copolymer of methylvinyl ether and maleic anhydride.
Claim 3
Independent Claim
82 words
The method of transferring and fixing a particulate image of electrically photosensitive particles which comprises: a. contacting said particulate image with a transfer member having a water tackifiable surface, said tackifiable surface being convertible to a water insoluble form; b. transferring at least a portion of said particulate image to said water tackifiable surface; c. moistening said tackifiable surface until at least a portion of said particulate image is embedded therein; and, d. converting said tackifiable surface to its water insoluble form.
Claim 4
Dependent Claim
12 words
The method of claim 4 wherein said tackifiable surface comprises polyethylene glycol.
Claim 5
Dependent Claim
24 words
A method of claim 4 wherein said tackifiable surface comprises a mixture of polyvinyl alcohol and a copolymer of methylvinyl ether and maleic anhydride.
References Cited (Backward Citations)
US2297691A
Cited
US2955035A
Cited
US3003404A
Cited
US3192043A
Cited
US3275436A
Cited
US3355288A
Cited
US3384565A
Cited
US3493412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |