Patent US3326709A successfully refreshed from Google Patents.
US3326709A
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US
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Electrostatic printing
Assignee: Eastman Kodak Co
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Filing: 1963-10-18
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Granted: 1967-06-20
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Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Nelson R Nail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:09
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/02; G03G13/00; G03G13/22; G03G5/00; G03G5/02; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A PROCESS OF ELECTROSTATIC PRINTING ON AN ELECTRICALLY INSULATING RECEIVING SHEET FROM A PRINTING MASTER COMPRISING A PHOTOCONDUCTIVE LAYER ON AN ELECTRICALLY CONDUCTIVE SUPPORT, SAID PHOTOCONDUCTIVE LAYER HAVING RELATIVELY ELECTRICALLY CONDUCTIVE AND RELATIVELY ELECTRICALLY INSULATING AREAS WHICH FORM AN IMAGE, THE STEPS COMPRISING: POSITIONING SAID RECEIVING SHEET WITH ONE SURFACE THEREOF IN OVERLYING CONTACT WITH SAID PHOTO-CONDUCTIVE LAYER; ELECTROSTATICALLY CHARGING SAID RECEIVING SHEET FROM THE OTHER SURFACE THEREOF TO A UNIFORM POTENTIAL TO PRODUCE THEREON AN ELECTROSTATIC IMAGE; TRANSFERRING SAID RECEIVING SHEET, AFTER SAID CHARGING STEP, TO A SURFACE OF AN ELECTRICALLY CONDUCTIVE GROUNDED PLATE; AND XEROGRAPHICALLY APPLYING TONER PARTICLES TO SAID ELECTROSTATIC IMAGE ON SAID RECEIVING SHEET TO PRODUCE A VISIBLE IMAGE.
Claim 2
Dependent Claim
114 words
IN A PROCESS OF ELECTROSTATIC PRINTING ON AN ELECTRICALLY INSULATING RECEIVING SHEET FROM A PRINTING MASTER COMPRISING A PHOTOCONDUCTIVE LAYER ON AN ELECTRICALLY CONDUCTIVE SUPPORT, SAID PHOTOCONDUCTIVE LAYER HAVING RELATIVELY ELECTRICALLY CONDUCTIVE AND RELATIVELY ELECTRICALLY INSULATING AREAS WHICH FORM AN IMAGE, THE STEPS COMPRISING: POSITIONING SAID RECEIVING SHEET WITH ONE SURFACE THEREOF IN OVERLYING CONTACT WITH SAID PHOTO-CONDUCTIVE LAYER; ELECTROSTATICALLY CHARGING SAID RECEIVING SHEET FROM THE OTHER SURFACE THEREOF TO A UNIFORM POTENTIAL TO PRODUCE THEREON AN ELECTROSTATIC IMAGE; TRANSFERRING SAID RECEIVING SHEET, AFTER SAID CHARGING STEP, TO A SURFACE OF AN ELECTRICALLY CONDUCTIVE GROUNDED PLATE; AND XEROGRAPHICALLY APPLYING TONER PARTICLES TO SAID ELECTROSTATIC IMAGE ON SAID RECEIVING SHEET TO PRODUCE A VISIBLE IMAGE.
References Cited (Backward Citations)
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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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |