US3301674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum support for planographic printing plates
Assignee: Azoplate Corp
•
Filing: 1964-10-01
•
Granted: 1967-01-31
•
Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 Uhlig Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:44
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/26; G03G13/28; B; B41; B41N; B41N3/00; B41N3/03
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
19 words
AN ALUMINUM BASE HAVING A FIRST LAYER THEREON COMPRISING MELLITIC ACID AND A REPRODUCTION LAYER ON THE FIRST LAYER.
Claim 2
Dependent Claim
14 words
AN ALUMINUM BASE ACCORDING TO CLAIM 8 IN WHICH THE REPRODUCTION LAYER IS PHOTOCONDUCTIVE.
Claim 3
Dependent Claim
55 words
A PROCESS FOR MAKING A PRINTING PLATE WHICH COMPRISES EXPOSING A COATED ALUMINUM BASE TO RADIATION UNDER A MASTER, THE COATING COMPRISING A FIRST LAYER COMPRISING MELLITE ACID AND A REPRODUCTION LAYER ON THE FIRST LAYER, AND DEVELOPING THE RESULTING IMAGE. WHEREBY THE COATING IS REMOVED FROM THE BASE MATERIAL IN THE IMAGE-FREE AREAS THEREOF.
References Cited (Backward Citations)
US2560137A
Cited
US2918416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |