US2597864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finishing varnish for application over lithographic ink
Assignee: Primerica Inc
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Filing: 1948-04-08
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Granted: 1952-05-27
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Expires: 1968-04-08
Abstract
No abstract record available.
Inventors
- 👤 Paul W Greubel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:46
CPC Classifications
B; B41; B41M; B41M7/00; B41M7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A FINISHING VARNISH FOR APPLICATION OVER WET LITHOGRAPHIC INK, SAID FINISHING VARNISH COMPRISING IN COMBINATION AN ALKYD RESIN AS A FILM FORMING MATERIAL, 2 TO 15% BY WEIGHT BASED ON THE FINISHED VARNISH OF A PIGMENT FLOCCULATING AGENT CONSISTING OF FORMAMIDE, AND A VOLATILE ORGANIC SOLVENT FOR SAID RESIN AND FLOCCULATING AGENT, SAID SOLVENT BEING MISCIBLE WITH THE INK VEHICLE AND CONTAINING SUFFICIENT COUPLING AGENT SELECTED FROM THE GROUP CONSISTING OF UNSUBSTITUTED MONOHYDRIC ALKANOLS HAVING FROM 4 TO 8 CARBON ATOMS AND GLYCOL MONETHERS HAVING FROM 2 TO 4 CARBON ATOMS IN THE GLYCOL PORTION OF THE MOLECULE AND HAVING ONE FREE HYDROXYL GROUP AND THE OTHER HYDROXYL GROUP ETHERIFIED WITH AN ALIPHATIC HYDROCARBON SUBSTITUENT HAVING FROM 2 TO 4 CARBON ATOMS TO MAINTAIN THE INGREDIENTS IN A SINGLE LIQUID PHASE.
Claim 2
Dependent Claim
131 words
A FINISHING VARNISH FOR APPLICATION OVER WET LITHOGRAPHIC INK, SAID FINISHING VARNISH COMPRISING IN COMBINATION AN ALKYD RESIN AS A FILM FORMING MATERIAL, 2 TO 15% BY WEIGHT BASED ON THE FINISHED VARNISH OF A PIGMENT FLOCCULATING AGENT CONSISTING OF FORMAMIDE, AND A VOLATILE ORGANIC SOLVENT FOR SAID RESIN AND FLOCCULATING AGENT, SAID SOLVENT BEING MISCIBLE WITH THE INK VEHICLE AND CONTAINING SUFFICIENT COUPLING AGENT SELECTED FROM THE GROUP CONSISTING OF UNSUBSTITUTED MONOHYDRIC ALKANOLS HAVING FROM 4 TO 8 CARBON ATOMS AND GLYCOL MONETHERS HAVING FROM 2 TO 4 CARBON ATOMS IN THE GLYCOL PORTION OF THE MOLECULE AND HAVING ONE FREE HYDROXYL GROUP AND THE OTHER HYDROXYL GROUP ETHERIFIED WITH AN ALIPHATIC HYDROCARBON SUBSTITUENT HAVING FROM 2 TO 4 CARBON ATOMS TO MAINTAIN THE INGREDIENTS IN A SINGLE LIQUID PHASE.
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) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |