US3050387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive material
Assignee: Azoplate Corp
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Filing: 1958-07-28
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Granted: 1962-08-21
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Neugebauer Wilhelm
- 👤 Stumpf Hans-Reiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:52
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/022; G03F7/023; G03F7/0233
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
45 words
A PRESENSITIZED PRINTING PLATE OF HIGH YEILD COMPRISING A BASE MATERIAL HAVING A LAYER THEREON COMPRISING A QUINONE-(1,4)-DIAZIDE AND A RESINOUS PRODUCT SELECTED FROM THE GROUP CONSISTING OF INTERPOLYMERIC RESINS OF MALEIC ANHYDRIDE AND VINYL COMPOUNDS AND ETHERS OF A PHENOL-ALDEHYDE RESIN WITH CHLOROACETIC ACID.
Claim 2
Dependent Claim
45 words
A PRESENSITIZED PRINTING PLATE OF HIGH YEILD COMPRISING A BASE MATERIAL HAVING A LAYER THEREON COMPRISING A QUINONE-(1,4)-DIAZIDE AND A RESINOUS PRODUCT SELECTED FROM THE GROUP CONSISTING OF INTERPOLYMERIC RESINS OF MALEIC ANHYDRIDE AND VINYL COMPOUNDS AND ETHERS OF A PHENOL-ALDEHYDE RESIN WITH CHLOROACETIC ACID.
Claim 3
Dependent Claim
18 words
A PRESENSITIZED PRINTING PLATE ACCORDING TO CLAIM 1 IN WHICH THE LAYER ALSO CONTAINS A LIGHT-SENSITIVE IMINOQUINONE DIAZIDE.
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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |