US2946683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Presensitized printing plate and method for preparing same
Assignee: Polychrome Corp
•
Filing: 1958-12-29
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Granted: 1960-07-26
•
Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Mellan Ibert
- 👤 Gumbinner Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:19
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/03; B41N3/038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PRESENSITIZED PLANOGRAPHIC PRINTING PLATE COMPRISING A METALLIC BASE AND A HYDROPHILIC COATING THEREON IN THE FORM OF A CONTINUOUS FILM, SAID COATING BEING PROVIDED BY TREATMENT OF THE METAL BASE WITH AN AQUEOUS SOLUTION OF A ZIRCONIUM HEXAHALIDE, AND A LIGHT SENSITIVE DIAZO COATING OVERLYING SAID HYDROPHILIC COATING.
Claim 2
Dependent Claim
49 words
A PRESENSITIZED PLANOGRAPHIC PRINTING PLATE COMPRISING A METALLIC BASE AND A HYDROPHILIC COATING THEREON IN THE FORM OF A CONTINUOUS FILM, SAID COATING BEING PROVIDED BY TREATMENT OF THE METAL BASE WITH AN AQUEOUS SOLUTION OF A ZIRCONIUM HEXAHALIDE, AND A LIGHT SENSITIVE DIAZO COATING OVERLYING SAID HYDROPHILIC COATING.
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) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |