US3354824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithographic fountain solutions and method of use
Assignee: Interchemical Corp
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Filing: 1964-05-04
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Granted: 1967-11-28
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Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Robert C Griffith
- 👤 Edwin T Dunning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:08
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A METHOD OF LITHOGRAPHIC PRINTING COMPRISING APPLYING TO A LITHOGRAPHIC PLATE A FOUNTQIN SOLUTION COMPRISING A MINOR AMOUNT OF PHOSPHORIC ACID, WATER, AT LEAST 15% OF THE VOLUME OF THE FOUNTAIN SOLUTION OF AN ALKANOL SELECTED FROM THE GROUP CONSISTING OF ETHANOL AND ISOPROPANOL, AND FROM 7 TO 58 G. OF COBALT NITRATE AND FROM .01 TO 22.4 G. OF ACETIC ACID ER GALLON OF FOUNTAIN SOLUTION, SUBSEQENTLY APPLYING TO SAID PLATE A HYDROPHOBIC INK AND THEN PRINTING UPON A SUBSTRATE WITH SAID PLATE.
References Cited (Backward Citations)
US2003268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |