US3296140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid developer for electrographic printing
Assignee: AB Dick Co
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Filing: 1964-02-13
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Granted: 1967-01-03
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Expires: 1984-02-13
Abstract
No abstract record available.
Inventors
- 👤 Daniel M Zabiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:46
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/12; G03G9/125; G03G9/13; G03G9/131
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A LIQUID DEVELOPER COMPOSITION FOR LATENT ELECTROSTATIC IMAGE CONSISTING ESSENTIALLY OF A LIQUID SOLVENT, A POLYSTYRENE RESIN PRESENT IN THE DISSOLVED STATE IN THE LIQUID SOLVENT IN AN AMOUNT WITHIN THE RANGE OF 0.5 TO 5.0 PERCENT BY WEIGHT OF THE COMPOSITION, AND A DYE OR PIGMENT SUSPENDED IN FINELY DIVIDED FORM IN THE POLYSTYRENE SOLUTION IN AN AMOUNT WITHIN THE RANGE OF 0.05 TO 0.6 PERCENT BY WEIGHT OF THE COMPOSITION, AND IN WHICH THE LIQUID SOLVENT CONSISTS ESSENTIALLY OF SUBSTANTIAL PROPORTIONS EACH OF AN ALIPHATIC PETROLEUM SOLVENT, AN AROMATIC HYDROCARBON SOLVENT PRESENT IN AN AMOUNT SUFFICIENT TO MAINTAIN THE POLYSTYRENE IN SOLUTION AND A CHLORIANTED-FLUORINATED HYDROCARBON SOLVENT PRESENT IN AN AMOUNT SUFFICIENT TO RAISE THE FLASH POINT OF THE LIQUID SOLVENT TO ABOVE 100*F. AND IN WHICH THE ALIPHATIC PETROLEUM SOLVENT AND AROMATIC HYDROCARBON SOLVENT HAVE BOILING POINTS WHICH DO NOT EXCEED ABOUT 349*F. AND IN WHICH THE LIQUID SOLVENT HAS A FLASH POINT ABOVE 100*F.
Claim 2
Dependent Claim
158 words
A LIQUID DEVELOPER COMPOSITION FOR LATENT ELECTROSTATIC IMAGE CONSISTING ESSENTIALLY OF A LIQUID SOLVENT, A POLYSTYRENE RESIN PRESENT IN THE DISSOLVED STATE IN THE LIQUID SOLVENT IN AN AMOUNT WITHIN THE RANGE OF 0.5 TO 5.0 PERCENT BY WEIGHT OF THE COMPOSITION, AND A DYE OR PIGMENT SUSPENDED IN FINELY DIVIDED FORM IN THE POLYSTYRENE SOLUTION IN AN AMOUNT WITHIN THE RANGE OF 0.05 TO 0.6 PERCENT BY WEIGHT OF THE COMPOSITION, AND IN WHICH THE LIQUID SOLVENT CONSISTS ESSENTIALLY OF SUBSTANTIAL PROPORTIONS EACH OF AN ALIPHATIC PETROLEUM SOLVENT, AN AROMATIC HYDROCARBON SOLVENT PRESENT IN AN AMOUNT SUFFICIENT TO MAINTAIN THE POLYSTYRENE IN SOLUTION AND A CHLORIANTED-FLUORINATED HYDROCARBON SOLVENT PRESENT IN AN AMOUNT SUFFICIENT TO RAISE THE FLASH POINT OF THE LIQUID SOLVENT TO ABOVE 100*F. AND IN WHICH THE ALIPHATIC PETROLEUM SOLVENT AND AROMATIC HYDROCARBON SOLVENT HAVE BOILING POINTS WHICH DO NOT EXCEED ABOUT 349*F. AND IN WHICH THE LIQUID SOLVENT HAS A FLASH POINT ABOVE 100*F.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |