Patent US3308233A successfully refreshed from Google Patents.
US3308233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic facsimile printer having light beam scanning and electrical charging with transparent conductive belt
Assignee: Xerox Corp
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Filing: 1963-09-16
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Granted: 1967-03-07
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Peter A Button
- 👤 Green Leland Dale
- 👤 Armand R Tanguay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:49
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/05; H; H04; H04N; H04N1/00; H04N1/23; H04N1/29; H04N5/00; H04N5/222; H04N5/257
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A FACSIMILE PRINTER FOR CONVERTING A VARIABLE VOLTAGE CORRESPONDING TO A VIDEO SIGNAL TO AN ELECTROSTATIC IMAGE, SAID PRINTER COMPRISING: A ROTATING CONDUCTIVE DRUM WHOSE LATERAL SURFACE IS COATED WITH A PHOTOCONDUCTIVE LAYER; A MULTILAYERED MOVING BELT INCLUDING A TRANSPARENT CONDUCTIVE LAYER SANDWICHED BETWEEN TRANSPARENT DIELECTRIC AND BACKING LAYERS SAID BELT BEING MOUNTED SO THAT A PORTION OF IT IS IN INTIMATE CONTACT WITH SAID PHOTOCONDUCTIVE LAYER; MEANS FOR APPLYING THE VARIABLE VOLTAGE BETWEEN SAID DRUM AND SAID CONDUCTIVE LAYER; AND OPTICAL MEANS FOR SCANNING THE PORTION OF SAID BELT THAT IS IN CONTACT WITH SAID PHOTOCONDUCTIVE LAYER WITH A TINY SPOT OF LIGHT OF CONSTANT INTENSITY.
Claim 2
Dependent Claim
107 words
A FACSIMILE PRINTER FOR CONVERTING A VARIABLE VOLTAGE CORRESPONDING TO A VIDEO SIGNAL TO AN ELECTROSTATIC IMAGE, SAID PRINTER COMPRISING: A ROTATING CONDUCTIVE DRUM WHOSE LATERAL SURFACE IS COATED WITH A PHOTOCONDUCTIVE LAYER; A MULTILAYERED MOVING BELT INCLUDING A TRANSPARENT CONDUCTIVE LAYER SANDWICHED BETWEEN TRANSPARENT DIELECTRIC AND BACKING LAYERS SAID BELT BEING MOUNTED SO THAT A PORTION OF IT IS IN INTIMATE CONTACT WITH SAID PHOTOCONDUCTIVE LAYER; MEANS FOR APPLYING THE VARIABLE VOLTAGE BETWEEN SAID DRUM AND SAID CONDUCTIVE LAYER; AND OPTICAL MEANS FOR SCANNING THE PORTION OF SAID BELT THAT IS IN CONTACT WITH SAID PHOTOCONDUCTIVE LAYER WITH A TINY SPOT OF LIGHT OF CONSTANT INTENSITY.
References Cited (Backward Citations)
US3199086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |