Patent US3417019A successfully refreshed from Google Patents.
US3417019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic development
Assignee: Eastman Kodak Co
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Filing: 1962-12-27
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Granted: 1968-12-17
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 George L Beyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:52
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/12; G03G9/135; G03G9/1355; G03G9/122; G03G9/13; G03G9/131; Y; Y10; Y10S; Y10S430/00; Y10S430/001; Y10S430/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A LIQUID XEROGRAPHIC DEVELOPER COMPRISING A HIGH RESISTANCE LIQUID VEHICLE, AND FUSIBLE TONER PARTICLES OF AN AVERAGE SIZE FROM 0.1 TO 30 MICRONS DISPERSED IN SAID LIQUID VEHICLE, SAID PARTICLES COMPRISING: (1) FROM 40 TO 90 WEIGHT PERCENT OF A THERMOPLASTIC POLYMER HAVING A FUSION POINT IN THE RANGE FROM ABOUT 50*C. TO ABOUT 200*C. (2) FROM 2 TO 30 WEIGHT PERCENT OF COMPATIBLE COLORING MATTER, AND (3) FROM 5 TO 30 WEIGHT PERCENT OF A CHARGE AGENT SELECTED FROM THE GROUP CONSISTING OF (A) SOAPS OF MAGNESIUM AND HEAVIER METALS, AND (B) CATIONIC, ANIONIC AND NON-IONIC SURFACE ACTIVE AGENTS.
Claim 2
Dependent Claim
100 words
A LIQUID XEROGRAPHIC DEVELOPER COMPRISING A HIGH RESISTANCE LIQUID VEHICLE, AND FUSIBLE TONER PARTICLES OF AN AVERAGE SIZE FROM 0.1 TO 30 MICRONS DISPERSED IN SAID LIQUID VEHICLE, SAID PARTICLES COMPRISING: (1) FROM 40 TO 90 WEIGHT PERCENT OF A THERMOPLASTIC POLYMER HAVING A FUSION POINT IN THE RANGE FROM ABOUT 50*C. TO ABOUT 200*C. (2) FROM 2 TO 30 WEIGHT PERCENT OF COMPATIBLE COLORING MATTER, AND (3) FROM 5 TO 30 WEIGHT PERCENT OF A CHARGE AGENT SELECTED FROM THE GROUP CONSISTING OF (A) SOAPS OF MAGNESIUM AND HEAVIER METALS, AND (B) CATIONIC, ANIONIC AND NON-IONIC SURFACE ACTIVE AGENTS.
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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) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |