US2800077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planographic printing plates and methods for manufacturing same
Assignee: AB Dick Co
•
Filing: 1952-03-27
•
Granted: 1957-07-23
•
Expires: 1972-03-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas U Marron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:17
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/12; B41N1/14; B41C; B41C1/00; B41C1/10; B41C1/1041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A LITHOGRAPHIC PRINTING PLATE COMPRISING A BASE SHEET AND A CONTINOUSLY LAYER ON THE SURFACE OF THE BASE SHEET WHICH LAYER FORMS THE HYDROPHILIC LITHOGRAPHIC SURFACE OF THE PLATE AND CONSISTS OF A POLYPHASE SYSTEM HAVING A HYDROPHILIC, WATER INSOLUBLE FILM FORMING COLLOID AS THE CONTINUOUS PHASE AND A DISPERSED PHASE OF AN INK RECEPTIVE, WATER REPELLENT IMAGING MATERIAL WHICH FORMS AN INK RECEPTIVE IMAGE ON THE LITHOGRAPHIC SURFACE WHEN RELEASED TO THE SURFACE OF THE COATING FROM THE POLYPHASE SYSTEM IN THE IMAGED AREAS.
Claim 2
Dependent Claim
85 words
A LITHOGRAPHIC PRINTING PLATE COMPRISING A BASE SHEET AND A CONTINOUSLY LAYER ON THE SURFACE OF THE BASE SHEET WHICH LAYER FORMS THE HYDROPHILIC LITHOGRAPHIC SURFACE OF THE PLATE AND CONSISTS OF A POLYPHASE SYSTEM HAVING A HYDROPHILIC, WATER INSOLUBLE FILM FORMING COLLOID AS THE CONTINUOUS PHASE AND A DISPERSED PHASE OF AN INK RECEPTIVE, WATER REPELLENT IMAGING MATERIAL WHICH FORMS AN INK RECEPTIVE IMAGE ON THE LITHOGRAPHIC SURFACE WHEN RELEASED TO THE SURFACE OF THE COATING FROM THE POLYPHASE SYSTEM IN THE IMAGED AREAS.
References Cited (Backward Citations)
US1245120A
Cited
US2119031A
Cited
US2299693A
Cited
US2374862A
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US2534650A
Cited
US2503758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |