Patent US3313623A successfully refreshed from Google Patents.
US3313623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line sequential color xerography
Assignee: Xerox Corp
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Filing: 1961-09-05
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Granted: 1967-04-11
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Expires: 1981-09-05
Abstract
No abstract record available.
Inventors
- 👤 William E Bixby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:25
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/01; G03G15/0105; G03G15/011
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
A METHOD OF XEROGRAPHIC COLOR REPRODUCTION COMPRISING PROJECTING AN ILLUMINATION PATTERN OF A COLOR IMAGE THROUGH AN OPAQUE LINE SCREEN AND A PRISM WHEREBY SAID ILLUMINATION PATTERN IS DISPERSED INTO LINES REPRESENTING THE PRIMARY SPECTRAL COMPONENTS OF SAID ILLUMINATION PATTERN; IMPOSING AN ELECTROSTATIC FIELD ACROSS A XEROGRAPHIC PLATE AND, WHILE SAID FIELD IS IMPOSED, EXPOSING SAID XEROGRAPHIC PLATE TO SAID SPECTRAL LINES TO FORM A BANDED LATENT ELECTROSTATIC IMAGE; AND DEVELOPING SAID BANDED LATENT ELECTROSTATIC IMAGE BY APPLYING CYAN COLOR DEVELOPER TO BANDS EXPOSED TO RED LINE SPECTRA, MAGENTA COLORED DEVELOPER TO BANDS EXPOSED TO GREEN LINE SPECTRA, AND YELLOW COLORED DEVELOPER TO BANDS EXPOSED TO BLUE LINE SPECTRA.
Claim 2
Independent Claim
109 words
A METHOD OF XEROGRAPHIC COLOR REPRODUCTION COMPRISING PROJECTING AN ILLUMINATION PATTERN OF A COLOR IMAGE THROUGH AN OPAQUE LINE SCREEN AND A PRISM WHEREBY SAID ILLUMINATION PATTERN IS DISPERSED INTO LINES REPRESENTING THE PRIMARY SPECTRAL COMPONENTS OF SAID ILLUMINATION PATTERN; IMPOSING AN ELECTROSTATIC FIELD ACROSS A XEROGRAPHIC PLATE AND, WHILE SAID FIELD IS IMPOSED, EXPOSING SAID XEROGRAPHIC PLATE TO SAID SPECTRAL LINES TO FORM A BANDED LATENT ELECTROSTATIC IMAGE; AND DEVELOPING SAID BANDED LATENT ELECTROSTATIC IMAGE BY APPLYING CYAN COLOR DEVELOPER TO BANDS EXPOSED TO RED LINE SPECTRA, MAGENTA COLORED DEVELOPER TO BANDS EXPOSED TO GREEN LINE SPECTRA, AND YELLOW COLORED DEVELOPER TO BANDS EXPOSED TO BLUE LINE SPECTRA.
Claim 3
Dependent Claim
113 words
A XEREOGRAPHIC COLOR IMAGING SYSTEM COMPRISING MEANS FOR CONVERTING AN ILLUMINATION PATTERN FROMAN ORIGINAL TO BE REPRODUCED INTO SEQUENTIAL LINE-SEGMENTS, MEANS FOR DISPERSING SAID SEQUENTIAL LINE-SEGMENTS INTO SEQUENTIALLY ADJACENT SPECTRA COMPRISING BANDS OF THE THREE PRIMARY COLOR COMPONENTS, A PANCHROMATIC XEROGRAPHIC PLATE, MEANS TO IMPOSE AN ELECTROSTATIC FIELD ACROSS SAID XEROGRAPHIC PLATE, SAOD XEROGRAPHIC PLATE BEING POSITIONED AT ABOUT THE POINT IN THE OPTICAL PATH WHERE THE EDGES OF THE SPECTRAL COMPONENTS OF EACH LINE-SEGMENT COINCIDE WITH THE EDGES OF THE SPECTRAL COMPONENTS OF ADJACENT LINE-SEGMENTS THEREBY FORMING A BANDED LATENT ELECTROSTATIC IMAGE ON SAID XEROGRAPHIC PLATE, AND MEANS FOR DEVELOPING SAID COLORED BANDS IN A REPEATING TRICHROMATIC SEQUENCE ACROSS SAID XEROGRAPHIC PLATE.
Claim 4
Dependent Claim
113 words
A XEREOGRAPHIC COLOR IMAGING SYSTEM COMPRISING MEANS FOR CONVERTING AN ILLUMINATION PATTERN FROMAN ORIGINAL TO BE REPRODUCED INTO SEQUENTIAL LINE-SEGMENTS, MEANS FOR DISPERSING SAID SEQUENTIAL LINE-SEGMENTS INTO SEQUENTIALLY ADJACENT SPECTRA COMPRISING BANDS OF THE THREE PRIMARY COLOR COMPONENTS, A PANCHROMATIC XEROGRAPHIC PLATE, MEANS TO IMPOSE AN ELECTROSTATIC FIELD ACROSS SAID XEROGRAPHIC PLATE, SAOD XEROGRAPHIC PLATE BEING POSITIONED AT ABOUT THE POINT IN THE OPTICAL PATH WHERE THE EDGES OF THE SPECTRAL COMPONENTS OF EACH LINE-SEGMENT COINCIDE WITH THE EDGES OF THE SPECTRAL COMPONENTS OF ADJACENT LINE-SEGMENTS THEREBY FORMING A BANDED LATENT ELECTROSTATIC IMAGE ON SAID XEROGRAPHIC PLATE, AND MEANS FOR DEVELOPING SAID COLORED BANDS IN A REPEATING TRICHROMATIC SEQUENCE ACROSS SAID XEROGRAPHIC PLATE.
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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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |