US3702303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning of photoconductive insulating surfaces
Assignee: Xerox Corp
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Filing: 1970-09-15
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Granted: 1972-11-07
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Expires: 1990-09-15
Abstract
Abstract COMPOSITION FOR CLEANING PHOTOCONDUCTIVE INSULATING SURFACES COMPRISED OF AN AQUEOUS-ORGANIC LIQUID EMULSION, AND A SURFACTANT. THE COMPOSITION MAY FURTHER INCLUDE AN ABRASIVE AND SUSPENDING AGENT. THE COMPOSITION PREFERABLY INCLUDES A NON-FLAMMABLE ORGANIC LIQUID OF LOW TOXICITY; E.G., TETRACHLOROETHYLENE, WHICH IS EMULSIFIED IN THE WATER IN AN AMOUNT TO CONTROL THE VOLATILITY THEREOF AND THEREBY PROVIDE A COMPOSITIN WHICH EVAPORATES FROM THE SURFACE TO BE CLEANED AT A RATE THAT PERMITS EFFECTIVE CLEANING WITHOUT PRODUCNG SOLVENT FILMS OR STAINS.
Inventors
- 👤 Carl F Clemens
- 👤 Thomas B Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:43
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/005; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/02
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) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |