Patent US3282208A successfully refreshed from Google Patents.
US3282208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planographic printing plate and process
Assignee: Individual
•
Filing: 1963-09-25
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Granted: 1966-11-01
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Expires: 1983-09-25
Abstract
No abstract record available.
Inventors
- 👤 Milton M Ruderman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:30
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/0045; G03F7/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A POSITIVE WORKING PLANORGRAPHIC PRINTING PLATE HAVING A WATER-INSOLUBLE DIAZO COATING THEREON WHICH HAS BEEN EXPOSED TO LIGHT DIRECTLY UNDER A CONTINUOUS TON MASTER PATTERN WITHOUT THE USE OF A HALFTONE SCREEN AND SUBSEQUENTLY DEVELOPED, SAID DIAZO COATING HAVING AN IMAGE THEREON WHICH IS INKED WITH A GREASY PRINTING INK IN CONTINUOUSLY VARYING AMOUNTS IN THE VARIOUS AREAS THEREOF IN AMOUNTS PROPORTIONAAL TO THE TONES OF THE CORRESPONDING AREAS OF THE MASTER PATTERN.
Claim 2
Dependent Claim
73 words
A POSITIVE WORKING PLANORGRAPHIC PRINTING PLATE HAVING A WATER-INSOLUBLE DIAZO COATING THEREON WHICH HAS BEEN EXPOSED TO LIGHT DIRECTLY UNDER A CONTINUOUS TON MASTER PATTERN WITHOUT THE USE OF A HALFTONE SCREEN AND SUBSEQUENTLY DEVELOPED, SAID DIAZO COATING HAVING AN IMAGE THEREON WHICH IS INKED WITH A GREASY PRINTING INK IN CONTINUOUSLY VARYING AMOUNTS IN THE VARIOUS AREAS THEREOF IN AMOUNTS PROPORTIONAAL TO THE TONES OF THE CORRESPONDING AREAS OF THE MASTER PATTERN.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |