Patent US3743537A successfully refreshed from Google Patents.
US3743537A
Expired / Lapsed
US
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Method of making an electrophotographic recording member
Assignee: Fujifilm Holdings Corp
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Filing: 1970-10-14
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Granted: 1973-07-03
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Expires: 1990-10-14
Abstract
Abstract A METHOD OF MANUFACTURING AN ELECTROPHOTOGRAPHIC PAPER COMPRISING THE STEPS OF FORMING A SMOOTH, ELECTRICALLY CONDUCTIVE BARRIER SUBCOATING ON A WATER-RESISTANT LAYER PROVIDED ON A PAPER BASE BY APPLYING TO THE WATERRESISTANT LAYER A TREATING MIXTURE CONTAINING COLLODIAL ALUMINA, CALENDERING THE SUBCOATING TO IMPROVE THE SURFACE SMOOTHNESS AND UNIFORMITY, THE COLLODIAL ALUMINA FORMING THE SUBCOATING BEING NOT LESS THAN 70% BY WEIGHT OF THE DRIED SUBCOATING; AND THEN PROVIDING AN ELECTROPHOTOGRAPHIC LIGHT-SENSITIVE LAYER ON THE SMOOTHED SUBCOATING.
Inventors
- 👤 S Honjo
- 👤 M Takimoto
- 👤 T Kasugai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:39
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/104; G03G5/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |