Patent DE600547C successfully refreshed from Google Patents.
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US3788931A Expired / Lapsed US ⏱️ 0.0 years remaining

Laminated printing plate base

Assignee: Printing Plate Supply Co
•
Filing: 1972-05-30
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Granted: 1974-01-29
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Expires: 1992-05-30
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Abstract

Abstract The method of making a laminated printing plate base is disclosed and generally comprises the steps of taking a metal layer and coating the opposite surfaces thereof with a thermo-adhesive; heating the metal layer and adhesive to a predetermined temperature; taking a first layer of thermoplastic material and placing a layer of scrim cloth adjacent one of the surfaces thereof; taking a second layer of thermoplastic material and placing a second layer of scrim cloth adjacent one of the surfaces thereof; heating the first and second layers of thermoplastic material to a predetermined temperature; placing the heated layers of the thermo-plastic material on opposite sides of the heated metal layer; and subjecting the component to a predetermined temperature and pressure to activate the thermo-adhesive and to laminate the components into a single unitary structure.

Inventors

  • 👤 J Hynes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 23:02
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B27/00; B32B1/00; B32B15/20; B32B27/12; B32B7/00; B32B7/04; B32B7/12; B41; B41C; B41C3/00; B41C3/08; B41N; B41N6/00; B32B2309/00; B32B2309/02; B32B2311/00; B32B2311/24

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1977-01-28 1977-07-30 1978-01-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-28 1981-07-30 1982-01-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-28 1985-07-30 1986-01-29 $7700.00 Window Closed / Lapsed

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