US3257944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing printing plates
Assignee: Individual
•
Filing: 1962-07-12
•
Granted: 1966-06-28
•
Expires: 1982-07-12
Abstract
No abstract record available.
Inventors
- 👤 Gray Arthur Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:20
CPC Classifications
B; B41; B41C; B41C3/00; B41C3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A METHOD OF MAKING A PRINTING PLATE COMPRISING THE STEPS OF PLACING IN A MOULD, FORMING A PRINTING PLATE MATRIX, A PRINTING SURFACE LAYER COMPONENT CONSISTING ESSENTIALLY OF THERMOPLASTIC VINYL-CHLORIDE VINYL-ACETATE COPOLYMER RESINS IN POWDER FORM FREE OF NITRILE RUBBER; PLACING A PREFORMED THERMOPLASTIC SHEET COMPONENT CONSISTING ESSENTIALLY OF VINYL-CHLORIDE VINYL-ACETATE COPOLYMER RESINS FREE OF NITRILE RUBBER IN DIRECT CONTACT WITH SAID PRINTING SURFACE LAYER COMPONENT; PLACING A BASE LAYER COMPONENT OF UNCURED NITRILE RUBBER IN DIRECT CONTACT WIT SAID PREFORMED SHEET COMPONENT; AND SUBJECTING SAID COMPONENTS TO HEAT WITHIN THE RANGE 140*C.-160*C. AND PRESSURE WITHIN THE RANGE 450 POUNDS PER SQUARE INCH-1120 POUNDS PER SQUARE INCH IN THE ABSENCE OF ANY ADHESIVE BETWEEN CONTACTING COMPONENTS, AND THEREBY FUSING SAID COMPONENTS DIRECTLY TOGETHER.
Claim 2
Independent Claim
123 words
A METHOD OF MAKING A PRINTING PLATE COMPRISING THE STEPS OF PLACING IN A MOULD, FORMING A PRINTING PLATE MATRIX, A PRINTING SURFACE LAYER COMPONENT CONSISTING ESSENTIALLY OF THERMOPLASTIC VINYL-CHLORIDE VINYL-ACETATE COPOLYMER RESINS IN POWDER FORM FREE OF NITRILE RUBBER; PLACING A PREFORMED THERMOPLASTIC SHEET COMPONENT CONSISTING ESSENTIALLY OF VINYL-CHLORIDE VINYL-ACETATE COPOLYMER RESINS FREE OF NITRILE RUBBER IN DIRECT CONTACT WITH SAID PRINTING SURFACE LAYER COMPONENT; PLACING A BASE LAYER COMPONENT OF UNCURED NITRILE RUBBER IN DIRECT CONTACT WIT SAID PREFORMED SHEET COMPONENT; AND SUBJECTING SAID COMPONENTS TO HEAT WITHIN THE RANGE 140*C.-160*C. AND PRESSURE WITHIN THE RANGE 450 POUNDS PER SQUARE INCH-1120 POUNDS PER SQUARE INCH IN THE ABSENCE OF ANY ADHESIVE BETWEEN CONTACTING COMPONENTS, AND THEREBY FUSING SAID COMPONENTS DIRECTLY TOGETHER.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |