US3306198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic printing process
Assignee: Continental Can Co Inc
•
Filing: 1963-12-04
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Granted: 1967-02-28
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Rarey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:31
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; B; B41; B41M; B41M1/00; B41M1/42; G03G13/00; G03G13/22; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD OF PRINTING FROM A PRINTING PLATE UPON A SUBSTRATE, SAID METHOD COMPRISING THE STEPS OF: (A) PROVIDING A PRINTING PLATE HAVING IMAGE AND NONIMAGE AREAS OF DIFFERENT ELECTRICAL POTENTIALS, THE IMAGE AREAS BEING ELECTRICALLY CONDUCTIVE SURFACES AND THE NON-IMAGE AREAS BEING ELECTRICALLY INSULATIVE SURFACES; (B) CHARGING SAID NON-IMAGE AREAS FOR PROVIDING SAID NON-IMAGE AREAS WITH A PREDETERMINED POLARITY; (C) DEVELOPING THE CONDUCTIVE IMAGE AREAS WITH AN IMAGE-FORMING MATERIAL WHICH IS COMPRISED OF ELECTRICALLY CHARGED IMAGE PARTICLES WHICH HAVE A POLARITY THE SAME AS THE POLARITY OF THE CHARGED NONIMAGE AREAS;
Claim 2
Independent Claim
92 words
A METHOD OF PRINTING FROM A PRINTING PLATE UPON A SUBSTRATE, SAID METHOD COMPRISING THE STEPS OF: (A) PROVIDING A PRINTING PLATE HAVING IMAGE AND NONIMAGE AREAS OF DIFFERENT ELECTRICAL POTENTIALS, THE IMAGE AREAS BEING ELECTRICALLY CONDUCTIVE SURFACES AND THE NON-IMAGE AREAS BEING ELECTRICALLY INSULATIVE SURFACES; (B) CHARGING SAID NON-IMAGE AREAS FOR PROVIDING SAID NON-IMAGE AREAS WITH A PREDETERMINED POLARITY; (C) DEVELOPING THE CONDUCTIVE IMAGE AREAS WITH AN IMAGE-FORMING MATERIAL WHICH IS COMPRISED OF ELECTRICALLY CHARGED IMAGE PARTICLES WHICH HAVE A POLARITY THE SAME AS THE POLARITY OF THE CHARGED NONIMAGE AREAS;
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |