US3215527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing cured polymeric etch resists using a xerographic developer containing a curable polymer
Assignee: RCA Corp
•
Filing: 1960-09-02
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Granted: 1965-11-02
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Expires: 1980-09-02
Abstract
No abstract record available.
Inventors
- 👤 Sigurd W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:47
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/06; H05K3/061; H05K3/065; G; G03; G03G; G03G9/00; G03G9/08; G03G9/09; G03G9/0926; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
A METHOD OF PROCESSING ON AN ETCHABLE SURFACE HAVING A COATING THEREON COMPRISING A PHOTOCONDUCTIVE INSULATING MATERIAL HAVING A RESINOUS COMPONENT SOLUBLE IN A SELECTED SOLVENT AND CAPABLE OF BEING CATALYTICALLY CURED; SAID METHOD COJMPRISING THE STEPS OF; ELECTROPHOTOGRAPHICALLY PRODUCING A LATENT ELECTROSTATIC IMAGE ON SAID COATING; DEVELOPING SAID ELECTROSTATIC IMAGE WITH A FINELYDIVIDED THERMOPLASTIC MATERIAL WHICH IS INSOLUBLE IN SAID SELECTED SOLVENT; FUSING SAID THERMOPLASTIC MATERIAL TO SAID COATING; APPLYING SAID SELECTED SOLVENT TO SAID COATING TO REMOVE ALL PORTIONS THEREOF NOT COVERED BY SAID THERMOPLASTIC MATERIAL; APPLYING TO THE REMAINING THERMOPLASTIC MATERIAL AND COATING A CURIG CATALYST FOR THE RESINOUS COMPONENT OF SAID COATING; AND HEATING SAID COATING TO PRODUCE ON SAID SURFACE A CURED ETCH RESIST.
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |