Patent US3231374A successfully refreshed from Google Patents.
US3231374A
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Methods for preparing etch resists using an electrostatic image developer composition
Assignee: RCA Corp
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Filing: 1960-09-02
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Granted: 1966-01-25
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Expires: 1980-09-02
Abstract
No abstract record available.
Inventors
- 👤 Louis J Sciambi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:22
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/06; H05K3/061; H05K3/065; G; G03; G03G; G03G13/00; G03G13/26; G03G13/32; G03G9/00; G03G9/08; G03G9/09; G03G9/0926; G03G9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE METHOD OF PREPARING A PLATE FOR ETCHING, SAID PLATE HAVING ON ONE SURFACE A PHOTOCONDUCTIVE INSULATING COATING COMPRISING A FINELY-DIVIDED PHOTOCONDUCTOR DISPERSED IN AN INSULATING BINDER A SUBSTANTIAL PROPORTION OF WHICH IS A NORMALLY SOLUBLE POLYMER RESIN WHICH INCLUDES MOLECULAR CHAINS CAPABLE OF BEING CROSS-LINKED TO RENDER THE RESIN SUBSTANTIALLY INSOLUBLE; SAID METHOD COMPRISING THE STEPS OF: ELECTROPHOTOGRAPHICALLY PRODUCING ON SAID COATING AN ELECTROSTATIC IMAGE;
Claim 2
Independent Claim
66 words
THE METHOD OF PREPARING A PLATE FOR ETCHING, SAID PLATE HAVING ON ONE SURFACE A PHOTOCONDUCTIVE INSULATING COATING COMPRISING A FINELY-DIVIDED PHOTOCONDUCTOR DISPERSED IN AN INSULATING BINDER A SUBSTANTIAL PROPORTION OF WHICH IS A NORMALLY SOLUBLE POLYMER RESIN WHICH INCLUDES MOLECULAR CHAINS CAPABLE OF BEING CROSS-LINKED TO RENDER THE RESIN SUBSTANTIALLY INSOLUBLE; SAID METHOD COMPRISING THE STEPS OF: ELECTROPHOTOGRAPHICALLY PRODUCING ON SAID COATING AN ELECTROSTATIC IMAGE;
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |