US3289577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wetting and cleansing agent for use in offset printing
Assignee: Azoplate Corp
•
Filing: 1963-01-08
•
Granted: 1966-12-06
•
Expires: 1983-01-08
Abstract
No abstract record available.
Inventors
- 👤 Uhlig Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
IN AN OFFSET PRINTING PROCESS, THE IMPROVEMENT WHICH COMPRISES DAMPENING THE PRINTING PLATE WITH AN AQUEOUS FOUNTAIN SOLUTION CONTAINING 0.001 TO 0.1 PERCENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYVINYL SULFONIC ACID AND POLYSTYRENE SULFONIC ACID.
Claim 2
Dependent Claim
41 words
IN AN OFFSET PRINTING PROCESS, THE IMPROVEMENT WHICH COMPRISES DAMPENING THE PRINTING PLATE WITH AN AQUEOUS FOUNTAIN SOLUTION CONTAINING 0.001 TO 0.1 PERCENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYVINYL SULFONIC ACID AND POLYSTYRENE SULFONIC ACID.
References Cited (Backward Citations)
US2186945A
Cited
US2186946A
Cited
FR897220A
Cited
US2760432A
Cited
US2953547A
Cited
US3108535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |