US3335003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflex xerographic process
Assignee: Xerox Corp
•
Filing: 1963-10-09
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Granted: 1967-08-08
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Expires: 1983-10-09
Abstract
No abstract record available.
Inventors
- 👤 Snelling Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/04; G03G15/04027; G03G15/22; G03G15/225; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08207; G03G5/10; G03G5/102; G03G5/14; G03G5/142; G03G5/144
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A METHOD OF XEROGRAPHY COMPRISING CHARGING THE PHOTOCONDUCTIVE INSULATING LAYER OF A XEROGRAPHIC PLATE COMPRISING AN OPTICAL SCREEN MADE UP OF SMALL FINELY INTERSPERSED, TRANSPARENT AND OPAQUE AREAS, A UNIFORM LAYER OF GOLD IN A THICKNESS UP TO ABOUT 300 ANGSTROM UNITS ON AT LEAST A PORTION OF ONE SURFACE OF SAID OPTICAL SCREEN, SAID GOLD LAYER BEING THIN ENOUGH TO TRANSMIT AT LEAST A PORTION OF THE VISIBLE LIGHT IMPINGING ON ITS SURFACE, AND A UNIFORM, ADHERENT, SMOOTH SURFACED, PHOTOCONDUCTIVE INSULATING LAYER CONSISTING ESSENTIALLY OF AMORPHOUS SELENIUM HAVING A THICKNESS UP TO ABOUT 25 MICRONS OVER SAID GOLD LAYER; PLACING AN ORIGINAL TO BE REPRODUCED IN FACE TO FACE CONTACT WITH THE CHARGED PHOTOCONDUCTIVE INSULATING SURFACE OF SAID PLATE, EXPOSING SAID PLATE THROUGH ITS OPTICAL SCREEN WITH A LIGHT SOURCE CONTAINING RED LIGHT, REMOVING THE ORIGINAL FROM CONTACT WITH SAID PHOTOCONDUCTIVE INSULATOR, AND THEN DEVELOPING THE LATENT ELECTROSTATIC IMAGE FORMED BY SAID EXPOSURE WITH COLORED, FINELY DIVIDED, ELECTROSCOPIC MAKING PARTICLES.
Claim 2
Independent Claim
161 words
A METHOD OF XEROGRAPHY COMPRISING CHARGING THE PHOTOCONDUCTIVE INSULATING LAYER OF A XEROGRAPHIC PLATE COMPRISING AN OPTICAL SCREEN MADE UP OF SMALL FINELY INTERSPERSED, TRANSPARENT AND OPAQUE AREAS, A UNIFORM LAYER OF GOLD IN A THICKNESS UP TO ABOUT 300 ANGSTROM UNITS ON AT LEAST A PORTION OF ONE SURFACE OF SAID OPTICAL SCREEN, SAID GOLD LAYER BEING THIN ENOUGH TO TRANSMIT AT LEAST A PORTION OF THE VISIBLE LIGHT IMPINGING ON ITS SURFACE, AND A UNIFORM, ADHERENT, SMOOTH SURFACED, PHOTOCONDUCTIVE INSULATING LAYER CONSISTING ESSENTIALLY OF AMORPHOUS SELENIUM HAVING A THICKNESS UP TO ABOUT 25 MICRONS OVER SAID GOLD LAYER; PLACING AN ORIGINAL TO BE REPRODUCED IN FACE TO FACE CONTACT WITH THE CHARGED PHOTOCONDUCTIVE INSULATING SURFACE OF SAID PLATE, EXPOSING SAID PLATE THROUGH ITS OPTICAL SCREEN WITH A LIGHT SOURCE CONTAINING RED LIGHT, REMOVING THE ORIGINAL FROM CONTACT WITH SAID PHOTOCONDUCTIVE INSULATOR, AND THEN DEVELOPING THE LATENT ELECTROSTATIC IMAGE FORMED BY SAID EXPOSURE WITH COLORED, FINELY DIVIDED, ELECTROSCOPIC MAKING PARTICLES.
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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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |