US3595650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive coating compositions,reproduction materials made therewith,and reproduction processes
Assignee: Sherwin Williams Co
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Filing: 1967-01-13
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Granted: 1971-07-27
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Expires: 1987-01-13
Abstract
Abstract ELECTROPHOTOGRAPHIC COATING COMPOSITIONS AND COATED SUBSTATES COMPRISIN A METALLIC OXIDE (E.G., ZINC OXIDE) ARE PREPARED WITH AN OIL MODIFIED POLYCARBOXY-POLYOL BINDER RESIN. THE BINDER RESIN FOR DRY DVELOPEMENT SHOULD HAVE AN ACID VALUE OF 5-50, A HYDROXYL VALUE OF 33-133 AND A CURE RATE OF 50-110 SECONDS AT 200*C., AND FOR LIQUID DEVELOPMENT AN ACID VALUE OF 5-50, A MIXIMUM HYDROXYL VALUE OF 66 AND A CURE RATE OF 5 TO 40 SECONDS AT 200*C.
Inventors
- 👤 Robert D Holzinger
- 👤 Joseph E Miller
- 👤 Alexander S Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:51
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0557; G03G5/056; G03G5/0592; Y; Y10; Y10S; Y10S524/00; Y10S524/901
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |