US3293186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adding and restoring image areas to plates
Assignee: Polychrome Corp
•
Filing: 1963-04-15
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Granted: 1966-12-20
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Simon L Chu
- 👤 Gerald F O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:56
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A COMPOSITION FOR TRANSFORMING AN OLEOPHOBIC NONIMAGE AREA OF A LITHOGRAPHIC PLATE INTO AN OLEOPHILIC IMAGE AREA CONSISTING ESSENTIALLY OF AN ALIPHATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF OLEIC ACID AND DODECYL ALCOHOL, ABOUT 0.275% TO 2.92% OF HYDROGEN ZIRCONIUM FLUORIDE, ABOUT 20.8% TO 62.5% OF AN ABRASIVE, ABOUT 124% TO 250% OF AN ACIDIC GUM, AND AS A SURFACTANT ABOUT 5.4% TO 16.7% OF A FATTY ALCOHOL SULFATE, SAID PERCENTAGES BEING CALCULATED ON THE WEIGHT OF SAID ALIPHATIC COMPOUND.
Claim 2
Dependent Claim
81 words
A COMPOSITION FOR TRANSFORMING AN OLEOPHOBIC NONIMAGE AREA OF A LITHOGRAPHIC PLATE INTO AN OLEOPHILIC IMAGE AREA CONSISTING ESSENTIALLY OF AN ALIPHATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF OLEIC ACID AND DODECYL ALCOHOL, ABOUT 0.275% TO 2.92% OF HYDROGEN ZIRCONIUM FLUORIDE, ABOUT 20.8% TO 62.5% OF AN ABRASIVE, ABOUT 124% TO 250% OF AN ACIDIC GUM, AND AS A SURFACTANT ABOUT 5.4% TO 16.7% OF A FATTY ALCOHOL SULFATE, SAID PERCENTAGES BEING CALCULATED ON THE WEIGHT OF SAID ALIPHATIC COMPOUND.
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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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |