US3292486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reversing colour images
Assignee: Gretag AG
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Filing: 1963-12-04
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Granted: 1966-12-20
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Mey Hansjuerg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:21
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/01; G03G15/00; G03G15/01; G03G15/0142; G03G15/0147; G03G15/0152; G03G15/0163; G03G5/00; G03G5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
APPARATUS FOR REVERSING A COLOUR IMAGE, COMPRISING A LIGHT SOURCE FOR ILLUMINATING THE COLOUR IMAGE, AN OPTICAL SYSTEM COMPRISING A PLURALITY OF LIGHT SPLITTERS FOR SEPARATELY PROJECTING A RESPECTIVE COLOUR SEPARATION OF THE COLOR IMAGE, AN ELECTROSTATICALLY CHARGEABLE PHOTOGRAPHIC SEMICONDUCTOR LAYER CONSTITUTING AN IMAGE PLANE FOR EACH OF SAID COLOR SEPERATIONS, MEANS FOR ELECTROSTATICALLY CHARGING SAID LAYER, MEANS FOR DEVELOPING A REVERSED XEROGRAPHIC PARTIAL IMAGE ON SAID LAYER AND MEANS FOR PROJECTING INTO A SECOND IMAGE PLANE SAID PARTIAL IMAGES OF THE INDIVIDUAL COLOR SEPARATIONS SUPERIMPOSED ON ONE ANOTHER AND IN CORRECT REGISTER.
Claim 2
Dependent Claim
93 words
APPARATUS FOR REVERSING A COLOUR IMAGE, COMPRISING A LIGHT SOURCE FOR ILLUMINATING THE COLOUR IMAGE, AN OPTICAL SYSTEM COMPRISING A PLURALITY OF LIGHT SPLITTERS FOR SEPARATELY PROJECTING A RESPECTIVE COLOUR SEPARATION OF THE COLOR IMAGE, AN ELECTROSTATICALLY CHARGEABLE PHOTOGRAPHIC SEMICONDUCTOR LAYER CONSTITUTING AN IMAGE PLANE FOR EACH OF SAID COLOR SEPERATIONS, MEANS FOR ELECTROSTATICALLY CHARGING SAID LAYER, MEANS FOR DEVELOPING A REVERSED XEROGRAPHIC PARTIAL IMAGE ON SAID LAYER AND MEANS FOR PROJECTING INTO A SECOND IMAGE PLANE SAID PARTIAL IMAGES OF THE INDIVIDUAL COLOR SEPARATIONS SUPERIMPOSED ON ONE ANOTHER AND IN CORRECT REGISTER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |