US3232231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic printing plates
Assignee: Chemical Products Corp
•
Filing: 1962-09-13
•
Granted: 1966-02-01
•
Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Maria John De
- 👤 William B Glen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:24
CPC Classifications
B; B41; B41C; B41C3/00; B41C3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN IMPROVED PRINTING PLATE COMPRISING A BACKING SHEET SECURED TO A VINYL RESIN FACING LAYER HAVING ON ITS SURFACE A PRINTING RELIEF IMAGE AND COMPRISING A VINYL RESIN SHEET CHARACTERIZED BY A COHERENT CONTINUUM FILM OF PLASTICIZED SOLVATED VINYL RESIN AND HAVING DISPERSED THROUGHOUT THE CONTINUUM FROM 5 TO 50 WEIGHT PERCENT OF RELATIVELY LARGE VINYL RESIN PARTICLES HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN THE HIGHLIGHT DOTS IN THE HALFTONES OF THE PLATE MOLD FROM WHIC THE FACING LAYER WAS COPIED.
Claim 2
Dependent Claim
83 words
AN IMPROVED PRINTING PLATE COMPRISING A BACKING SHEET SECURED TO A VINYL RESIN FACING LAYER HAVING ON ITS SURFACE A PRINTING RELIEF IMAGE AND COMPRISING A VINYL RESIN SHEET CHARACTERIZED BY A COHERENT CONTINUUM FILM OF PLASTICIZED SOLVATED VINYL RESIN AND HAVING DISPERSED THROUGHOUT THE CONTINUUM FROM 5 TO 50 WEIGHT PERCENT OF RELATIVELY LARGE VINYL RESIN PARTICLES HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN THE HIGHLIGHT DOTS IN THE HALFTONES OF THE PLATE MOLD FROM WHIC THE FACING LAYER WAS COPIED.
References Cited (Backward Citations)
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Cited
US2108822A
Cited
US2450435A
Cited
US3031959A
Cited
US3042644A
Cited
US3113514A
Cited
US3015640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |