US3595653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid-containing lacquer for planographic printing plates
Assignee: Kalle GmbH and Co KG
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Filing: 1967-05-15
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Granted: 1971-07-27
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Expires: 1987-05-15
Abstract
Abstract DISCLOSED IS AN IMPROVEMENT OF A KNOWN PLANOGRAPHIC PRINTING PLATE LACQUER COMPRISING A WATER INSOLUBLE FILMFORMING RESIN IN SOLUTION IN A SOLVENT MIXTURE CONTAINING ABOUT 40 TO 80% BY WEIGHT OF A POLYHYRIC ALCOHOL, THE IMPROVEMENT BEING THE ADDITION OF ABOUT 0.05 TO 10% BY WEIGHT OF AN ACID, OTHER THAN OXALIC, HAVING A DISSOCIATION CONSTANT GREATER THAN 10-3 AT 20*C.
Inventors
- 👤 Hartmut Steppan
- 👤 Fritz Uhlig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:24
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/04; C09D161/06; C08; C08G; C08G8/00; C08G8/28; C08G8/32; B; B41; B41N; B41N3/00; B41N3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |