Patent US3798048A successfully refreshed from Google Patents.
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Patent US3206600A successfully refreshed from Google Patents.
US3206600A
Expired / Lapsed
US
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Image-formation on electro-photographic material
Assignee: Keuffel and Esser Co
•
Filing: 1963-05-21
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Granted: 1965-09-14
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Expires: 1983-05-21
Abstract
No abstract record available.
Inventors
- 👤 Robert M Gold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:03
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/22; G03G17/00; Y; Y10; Y10S; Y10S101/00; Y10S101/37; Y10S430/00; Y10S430/001; Y10S430/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A METHOD OF MAKING AN IMAGE ON A SINGLE PHOTOCONDUCTIVE ELECTROPHOTOGRAPHIC LAYER, WHICH COMPRISES THE STEPS OF: PRESSURE-IMAGING A PATTERN ON SAID LAYER TO FORM A RELATIVELY PERMANENT, LATENT, DEVELOPABLE IMAGE SURROUNDED BY NON-IMAGE AREAS; AND DEVELOPING SAID LATENT IMAGE BY APPLYING ELECTROSCOPIC TONER WHICH CONTRAST WITH THE LAYER AND WHICH SELECTIVELY ADHERES TO THE IMAGE AREAS OF AID LAYER TO RENDER THE LATENT IMAGE VISIBLE.
Claim 2
Independent Claim
66 words
A METHOD OF MAKING AN IMAGE ON A SINGLE PHOTOCONDUCTIVE ELECTROPHOTOGRAPHIC LAYER, WHICH COMPRISES THE STEPS OF: PRESSURE-IMAGING A PATTERN ON SAID LAYER TO FORM A RELATIVELY PERMANENT, LATENT, DEVELOPABLE IMAGE SURROUNDED BY NON-IMAGE AREAS; AND DEVELOPING SAID LATENT IMAGE BY APPLYING ELECTROSCOPIC TONER WHICH CONTRAST WITH THE LAYER AND WHICH SELECTIVELY ADHERES TO THE IMAGE AREAS OF AID LAYER TO RENDER THE LATENT IMAGE VISIBLE.
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |