US3077150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reproducing images
Assignee: International Business Machines Corp
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Filing: 1960-07-25
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Granted: 1963-02-12
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Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Roland M Schaffert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:11
CPC Classifications
G; G03; G03G; G03G19/00; G03G15/00; G03G15/22; G03G15/221; G03G15/04; G03G15/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
AN APPARATUS FOR REPRODUCING IMAGES ON A PRINTRECEIVING SURFACE FROM A MASTER COPY COMPRISING, IN COMBINATION, A CATHODE RAY TUBE INCLUDING ELECTRON BEAMFORMING MEANS, BEAM-CONTROLLING MEANS, ELECTRON BEAMACCELERATING MEANS, AND A PHOTOSENSITIVE SCREEN; A PHOTOCONDUCTING PLATE, SAID ELECTRON BEAM-CONTROLLING MEANS CONTROLLING SAID BEAM TO SCAN SAID PHOTOCONDUCTING PLATE; MEANS FOR DEVELOPING A POTENTIAL FIELD IN THE VICINITY OF SAID PHOTOCONDUCTIVE PLATE TO FORM AN ELECTRON MIRROR IN CONJUNCTION WITH SAID PHOTOCONDUCTIVE PLATE, SAID ELECTRON MIRROR PROVIDING A FIELD FOR STOPPING SAID BEAM IN THE VICINITY OF SAID PLATE AND THEN CAUSING SAID BEAM TO BE ACCELERATED AWAY FROM SAID PLATE, WHEREBY SAID BEAM CARRIES AN IMAGE OF ANY IRREGULARITIES EXISTING ON SAID PLATE, SAID PHOTOSENSITIVE SCREEN ARRANGED FOR RECEIVING SAID ELECTRON BEAM AND TRANSLATING THE IMPINGEMENT OF THE ELECTRON BEAMS INTO LIGHT IMAGES; AND MEANS FOR ILLUMINATING THE MASTER COPY AND FOR DIRECTING LIGHT RAYS REFLECTED FROM THE MASTER COPY TO IMPINGE ON SAID PHOTOCONDUCTIVE PLATE, SAID LIGHT RAYS DEVELOPING ELECTROSTATIC PATTERNS ON SAID PHOTOCONDUCTIVE PLATE CORRESPONDING TO THE IMAGES ON SAID MASTER COPY, SAID ELECTRON BEAM ACCELERATED AWAY FROM SAID ELECTRON MIRROR PROVIDING A PICTORIAL REPRESENTATION ON SAID SCREEN OF THE CHARACTERS ON SAID MASTER COPY FOR EXPOSING THE PRINT-RECEIVING SURFACE THERETO.
Claim 2
Independent Claim
203 words
AN APPARATUS FOR REPRODUCING IMAGES ON A PRINTRECEIVING SURFACE FROM A MASTER COPY COMPRISING, IN COMBINATION, A CATHODE RAY TUBE INCLUDING ELECTRON BEAMFORMING MEANS, BEAM-CONTROLLING MEANS, ELECTRON BEAMACCELERATING MEANS, AND A PHOTOSENSITIVE SCREEN; A PHOTOCONDUCTING PLATE, SAID ELECTRON BEAM-CONTROLLING MEANS CONTROLLING SAID BEAM TO SCAN SAID PHOTOCONDUCTING PLATE; MEANS FOR DEVELOPING A POTENTIAL FIELD IN THE VICINITY OF SAID PHOTOCONDUCTIVE PLATE TO FORM AN ELECTRON MIRROR IN CONJUNCTION WITH SAID PHOTOCONDUCTIVE PLATE, SAID ELECTRON MIRROR PROVIDING A FIELD FOR STOPPING SAID BEAM IN THE VICINITY OF SAID PLATE AND THEN CAUSING SAID BEAM TO BE ACCELERATED AWAY FROM SAID PLATE, WHEREBY SAID BEAM CARRIES AN IMAGE OF ANY IRREGULARITIES EXISTING ON SAID PLATE, SAID PHOTOSENSITIVE SCREEN ARRANGED FOR RECEIVING SAID ELECTRON BEAM AND TRANSLATING THE IMPINGEMENT OF THE ELECTRON BEAMS INTO LIGHT IMAGES; AND MEANS FOR ILLUMINATING THE MASTER COPY AND FOR DIRECTING LIGHT RAYS REFLECTED FROM THE MASTER COPY TO IMPINGE ON SAID PHOTOCONDUCTIVE PLATE, SAID LIGHT RAYS DEVELOPING ELECTROSTATIC PATTERNS ON SAID PHOTOCONDUCTIVE PLATE CORRESPONDING TO THE IMAGES ON SAID MASTER COPY, SAID ELECTRON BEAM ACCELERATED AWAY FROM SAID ELECTRON MIRROR PROVIDING A PICTORIAL REPRESENTATION ON SAID SCREEN OF THE CHARACTERS ON SAID MASTER COPY FOR EXPOSING THE PRINT-RECEIVING SURFACE THERETO.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |