Patent US3247794A successfully refreshed from Google Patents.
US3247794A
Expired / Lapsed
US
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Transfer process
Assignee: AB Dick Co
•
Filing: 1963-04-25
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Granted: 1966-04-26
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Daniel M Zabiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:20
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/028; G03G13/00; G03G13/14; G03G13/16; G03G15/00; G03G15/22; G03G15/228; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A PROCESS FOR THE PRODUCTION OF COPY COMPRISING THE STEPS OF PROVIDING AN ELECTRO-PHOTOGRAPHIC SHEET HAVING A CONDUCTIVE BASE AND A DIELECTRIC COATING ADAPTED TO LOWER ITS ELECTRICAL RESISTANCE WHEN EXPOSED TO HEAT WITH A LATENT ELECTROSTATIC IMAGE ON THE SURFACE OF THE DIELECTRIC COATING DEVELOPING THE LATENT ELECTROSTATIC IMAGE WITH AN INFRARED RAY ABSORBING DEVELOPING COMPOSITION, FIXING THE DEVELOPED IMAGE ON THE DIELECTRIC SURFACE, EXPOSING THE IMAGED SHEET TO CORONA DISCHARGE TO PROVIDE AN OVERALL ELECTROSTATIC CHARGE ON THE IMAGED SURFACE OF THE SHEET, RADIATING THE SHEET WITH RADIATIONS RICH IN INFRARED TO GENERATE A HEAT PATTERN CORRESPONDING TO THE IMAGED PORTION WHEREBY ELECTROSTATIC CHARGE IS DISSIPATED FROM THE IMAGED AREAS, DEVELOPING THE SHEET WITH A DEVELOPING MATERIAL HAVING THE SAME POLARITY AS THE OVERALL ELECTGROSTATIC CHARGE WHEREBY THE DEVELOPING MATERIAL WILL DEPOSIT ON THE IMAGED AREAS, CONTACTING THE DEVELOPED SURFACE OF THE SHEET WITH A COPY SHEET WHEREBY THE DEVELOPING MATERIAL TRANSFERS FROM THE IMAGED SHEET TO THE COPY SHEET AND THEN FIXING THE TRANSFERRED DEVELOPING MATERIAL ON SAID COPY SHEET TO PRODUCE COPY.
Claim 2
Dependent Claim
176 words
A PROCESS FOR THE PRODUCTION OF COPY COMPRISING THE STEPS OF PROVIDING AN ELECTRO-PHOTOGRAPHIC SHEET HAVING A CONDUCTIVE BASE AND A DIELECTRIC COATING ADAPTED TO LOWER ITS ELECTRICAL RESISTANCE WHEN EXPOSED TO HEAT WITH A LATENT ELECTROSTATIC IMAGE ON THE SURFACE OF THE DIELECTRIC COATING DEVELOPING THE LATENT ELECTROSTATIC IMAGE WITH AN INFRARED RAY ABSORBING DEVELOPING COMPOSITION, FIXING THE DEVELOPED IMAGE ON THE DIELECTRIC SURFACE, EXPOSING THE IMAGED SHEET TO CORONA DISCHARGE TO PROVIDE AN OVERALL ELECTROSTATIC CHARGE ON THE IMAGED SURFACE OF THE SHEET, RADIATING THE SHEET WITH RADIATIONS RICH IN INFRARED TO GENERATE A HEAT PATTERN CORRESPONDING TO THE IMAGED PORTION WHEREBY ELECTROSTATIC CHARGE IS DISSIPATED FROM THE IMAGED AREAS, DEVELOPING THE SHEET WITH A DEVELOPING MATERIAL HAVING THE SAME POLARITY AS THE OVERALL ELECTGROSTATIC CHARGE WHEREBY THE DEVELOPING MATERIAL WILL DEPOSIT ON THE IMAGED AREAS, CONTACTING THE DEVELOPED SURFACE OF THE SHEET WITH A COPY SHEET WHEREBY THE DEVELOPING MATERIAL TRANSFERS FROM THE IMAGED SHEET TO THE COPY SHEET AND THEN FIXING THE TRANSFERRED DEVELOPING MATERIAL ON SAID COPY SHEET TO PRODUCE COPY.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |