Patent US3148057A successfully refreshed from Google Patents.
US3148057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material for electrophotographic purposes
Assignee: Azoplate Corp
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Filing: 1962-03-21
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Granted: 1964-09-08
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Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 Raether Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:51
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08207
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PHOTOGRAPHIC REPRODUCTION PROCESS WHICH COMPRISES EXPOSING AN ELECTROSTATICALLY CHARGED PHOTOCONDUCTIVE INSULATING LAYER SUPPORTED ON A METAL BASE TO LIGHT UNDER A MASTER AND DEVELOPING THE RESULTNG IMAGE WITH AN ELECTROSCOPIC MATERIAL, THE PHOTOCONDUCTIVE LAYER COMPRISING AN OXIDE COATING OF THE METAL BASE PRODUCED BY ANODIZATION.
Claim 2
Dependent Claim
46 words
A PHOTOGRAPHIC REPRODUCTION PROCESS WHICH COMPRISES EXPOSING AN ELECTROSTATICALLY CHARGED PHOTOCONDUCTIVE INSULATING LAYER SUPPORTED ON A METAL BASE TO LIGHT UNDER A MASTER AND DEVELOPING THE RESULTNG IMAGE WITH AN ELECTROSCOPIC MATERIAL, THE PHOTOCONDUCTIVE LAYER COMPRISING AN OXIDE COATING OF THE METAL BASE PRODUCED BY ANODIZATION.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |